ID

VAR-202002-0332


CVE

CVE-2019-20044


TITLE

Zsh Vulnerability in improper checking for deleted privileges in

Trust: 0.8

sources: JVNDB: JVNDB-2019-014656

DESCRIPTION

In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid(). Zsh Is vulnerable to improper checking of removed privileges.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. An attacker can exploit this vulnerability to restore the original permissions. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202003-55 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Zsh: Privilege escalation Date: March 25, 2020 Bugs: #711136 ID: 202003-55 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in Zsh might allow an attacker to escalate privileges. Background ========== A shell designed for interactive use, although it is also a powerful scripting language. Impact ====== An attacker could escalate privileges. Workaround ========== There is no known workaround at this time. Resolution ========== All Zsh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-shells/zsh-5.8" References ========== [ 1 ] CVE-2019-20044 https://nvd.nist.gov/vuln/detail/CVE-2019-20044 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202003-55 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . ========================================================================== Ubuntu Security Notice USN-5325-1 March 14, 2022 zsh vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 ESM Summary: Several security issues were fixed in Zsh. Software Description: - zsh: shell with lots of features Details: Sam Foxman discovered that Zsh incorrectly handled certain inputs. (CVE-2019-20044) It was discovered that Zsh incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-45444) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: zsh 5.8-6ubuntu0.1 zsh-static 5.8-6ubuntu0.1 Ubuntu 20.04 LTS: zsh 5.8-3ubuntu1.1 zsh-static 5.8-3ubuntu1.1 Ubuntu 18.04 LTS: zsh 5.4.2-3ubuntu3.2 zsh-static 5.4.2-3ubuntu3.2 Ubuntu 16.04 ESM: zsh 5.1.1-1ubuntu2.3+esm1 zsh-static 5.1.1-1ubuntu2.3+esm1 In general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2020-05-26-3 macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra are now available and address the following: Accounts Available for: macOS Catalina 10.15.4 Impact: A remote attacker may be able to cause a denial of service Description: A denial of service issue was addressed with improved input validation. CVE-2020-9827: Jannik Lorenz of SEEMOO @ TU Darmstadt AirDrop Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A remote attacker may be able to cause a denial of service Description: A denial of service issue was addressed with improved input validation. CVE-2020-9826: Dor Hadad of Palo Alto Networks AppleMobileFileIntegrity Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15.4 Impact: An application may be able to use arbitrary entitlements Description: This issue was addressed with improved checks. CVE-2020-9842: Linus Henze (pinauten.de) AppleUSBNetworking Available for: macOS Catalina 10.15.4 Impact: Inserting a USB device that sends invalid messages may cause a kernel panic Description: A logic issue was addressed with improved restrictions. CVE-2020-9804: Andy Davis of NCC Group Audio Available for: macOS Catalina 10.15.4 Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9815: Yu Zhou (@yuzhou6666) working with Trend Micro Zero Day Initiative Audio Available for: macOS Catalina 10.15.4 Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-9791: Yu Zhou (@yuzhou6666) working with Trend Micro Zero Day Initiative Bluetooth Available for: macOS Catalina 10.15.4 Impact: A malicious application may be able to determine kernel memory layout Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9831: Yu Wang of Didi Research America Calendar Available for: macOS Catalina 10.15.4 Impact: Importing a maliciously crafted calendar invitation may exfiltrate user information Description: This issue was addressed with improved checks. CVE-2020-3882: Andy Grant of NCC Group CVMS Available for: macOS Catalina 10.15.4 Impact: An application may be able to gain elevated privileges Description: This issue was addressed with improved checks. CVE-2020-9856: @jinmo123, @setuid0x0_, and @insu_yun_en of @SSLab_Gatech working with Trend Micro’s Zero Day Initiative DiskArbitration Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to break out of its sandbox Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9847: Zhuo Liang of Qihoo 360 Vulcan Team Find My Available for: macOS Catalina 10.15.4 Impact: A local attacker may be able to elevate their privileges Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. CVE-2020-9855: Zhongcheng Li(CK01) of Topsec Alpha Team FontParser Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9816: Peter Nguyen Vu Hoang of STAR Labs working with Trend Micro Zero Day Initiative ImageIO Available for: macOS Catalina 10.15.4 Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-3878: Samuel Groß of Google Project Zero ImageIO Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9789: Wenchao Li of VARAS@IIE CVE-2020-9790: Xingwei Lin of Ant-financial Light-Year Security Lab Intel Graphics Driver Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9822: ABC Research s.r.o IPSec Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15.4 Impact: A remote attacker may be able to leak memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9837: Thijs Alkemade of Computest Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved state management. CVE-2020-9821: Xinru Chi and Tielei Wang of Pangu Lab Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to determine another application's memory layout Description: An information disclosure issue was addressed by removing the vulnerable code. CVE-2020-9797: an anonymous researcher Kernel Available for: macOS Catalina 10.15.4 Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: An integer overflow was addressed through improved input validation. CVE-2020-9852: Tao Huang and Tielei Wang of Pangu Lab Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A use after free issue was addressed with improved memory management. CVE-2020-9795: Zhuo Liang of Qihoo 360 Vulcan Team Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: An application may be able to cause unexpected system termination or write kernel memory Description: A memory corruption issue was addressed with improved state management. CVE-2020-9808: Xinru Chi and Tielei Wang of Pangu Lab Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A local user may be able to read kernel memory Description: An information disclosure issue was addressed with improved state management. CVE-2020-9811: Tielei Wang of Pangu Lab CVE-2020-9812: Derrek (@derrekr6) Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A logic issue existed resulting in memory corruption. This was addressed with improved state management. CVE-2020-9813: Xinru Chi of Pangu Lab CVE-2020-9814: Xinru Chi and Tielei Wang of Pangu Lab Kernel Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to determine kernel memory layout Description: An information disclosure issue was addressed with improved state management. CVE-2020-9809: Benjamin Randazzo (@____benjamin) ksh Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A local user may be able to execute arbitrary shell commands Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation. CVE-2019-14868 NSURL Available for: macOS Mojave 10.14.6 Impact: A malicious website may be able to exfiltrate autofilled data in Safari Description: An issue existed in the parsing of URLs. This issue was addressed with improved input validation. CVE-2020-9857: Dlive of Tencent Security Xuanwu Lab PackageKit Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to gain root privileges Description: A permissions issue existed. This issue was addressed with improved permission validation. CVE-2020-9817: Andy Grant of NCC Group PackageKit Available for: macOS Catalina 10.15.4 Impact: A malicious application may be able to modify protected parts of the file system Description: An access issue was addressed with improved access restrictions. CVE-2020-9851: Linus Henze (pinauten.de) Python Available for: macOS Catalina 10.15.4 Impact: A remote attacker may be able to cause arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2020-9793 Sandbox Available for: macOS Catalina 10.15.4 Impact: A malicious application may be able to bypass Privacy preferences Description: An access issue was addressed with additional sandbox restrictions. CVE-2020-9825: Sreejith Krishnan R (@skr0x1C0) Security Available for: macOS Catalina 10.15.4 Impact: A file may be incorrectly rendered to execute JavaScript Description: A validation issue was addressed with improved input sanitization. CVE-2020-9788: Wojciech Reguła of SecuRing (https://wojciechregula.blog) SIP Available for: macOS Catalina 10.15.4 Impact: A non-privileged user may be able to modify restricted network settings Description: A logic issue was addressed with improved restrictions. CVE-2020-9824: Csaba Fitzl (@theevilbit) of Offensive Security SQLite Available for: macOS Catalina 10.15.4 Impact: A malicious application may cause a denial of service or potentially disclose memory contents Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9794 System Preferences Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: An application may be able to gain elevated privileges Description: A race condition was addressed with improved state handling. CVE-2020-9839: @jinmo123, @setuid0x0_, and @insu_yun_en of @SSLab_Gatech working with Trend Micro’s Zero Day Initiative USB Audio Available for: macOS Catalina 10.15.4 Impact: A USB device may be able to cause a denial of service Description: A validation issue was addressed with improved input sanitization. CVE-2020-9792: Andy Davis of NCC Group Wi-Fi Available for: macOS Catalina 10.15.4 Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory Description: A double free issue was addressed with improved memory management. CVE-2020-9844: Ian Beer of Google Project Zero Wi-Fi Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved state management. CVE-2020-9830: Tielei Wang of Pangu Lab Wi-Fi Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2020-9834: Yu Wang of Didi Research America Wi-Fi Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A local user may be able to read kernel memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2020-9833: Yu Wang of Didi Research America Wi-Fi Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A malicious application may be able to determine kernel memory layout Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-9832: Yu Wang of Didi Research America WindowServer Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: An application may be able to execute arbitrary code with kernel privileges Description: An integer overflow was addressed through improved input validation. CVE-2020-9841: ABC Research s.r.o. working with Trend Micro Zero Day Initiative zsh Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.4 Impact: A local attacker may be able to elevate their privileges Description: An authorization issue was addressed with improved state management. CVE-2019-20044: Sam Foxman Additional recognition CoreBluetooth We would like to acknowledge Maximilian von Tschitschnitz of Technical University Munich and Ludwig Peuckert of Technical University Munich for their assistance. CoreText We would like to acknowledge Jiska Classen (@naehrdine) and Dennis Heinze (@ttdennis) of Secure Mobile Networking Lab for their assistance. Endpoint Security We would like to acknowledge an anonymous researcher for their assistance. ImageIO We would like to acknowledge Lei Sun for their assistance. IOHIDFamily We would like to acknowledge Andy Davis of NCC Group for their assistance. IPSec We would like to acknowledge Thijs Alkemade of Computest for their assistance. Login Window We would like to acknowledge Jon Morby and an anonymous researcher for their assistance. Sandbox We would like to acknowledge Jason L Lang of Optum for their assistance. Spotlight We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive Security for their assistance. Installation note: macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra may be obtained from the Mac App Store or Apple's Software Downloads web site: https://support.apple.com/downloads/ -----BEGIN PGP SIGNATURE----- Version: BCPG v1.64 iQIcBAEDCAAGBQJezZcfAAoJEAc+Lhnt8tDNIQYP/0YN+/T85WC7RJjAlRrUDduD ZO0e76d2C1jNgZWsYmXnrEPwfRYAEPLcKgb/SxAlwlRNFqex9CNu2sD1aA3GZBIO MaektARuncqh06rl8BjbakS4HQs675vUEjoJS9H2d0pq2dSEIjOtH1agJwtGIeNS wHBFlUnQzI42hurYeq7fxRdiByf+Z3mKEBt6wlVtaWjqcMfG9sroj9H58RLiqSNm VNfU4eZNPrG49kbTf4IC2JvvKg18hrUZqIcjbV/56+kPBl4+USIxh/5ECJHV/cDD BEe64M2I1LiY0lq6neoOeHvBiiIvUq9EUW2PBnfcbo3V1D35mm6td+WnO3Buqo6f EEkjfIwtq7fI10ZPYYjiUayrQyfqmM3x14JcxDsHzlerT6NNRTg3g2ls0seQK9Lt 8IDbkrseOR0JFukR1njC+cAk4RbDFue5cUJK6Js1nGvFwLN0kHFIhh9jFKgccgH7 bKSLDAdB+kSxBOshDDmYyNS+KRzXEWIsBU8ZbNAbRDANWqm4lcPffKWcG7zIdiMQ JLUclRURf35AoFmJ0F1BZSRzFuHr1Dvh23SjNK7H9i/mD05+rY6esh5ZKco+6Yqe pW/EOXEAs/J06xUytABH3SkFmQSzlIPuFrXa8qAskHhFp/E8yLehyefoY+AZJjal sLrLBIOxQCTskSFoExP8 =2eah -----END PGP SIGNATURE----- . 6) - i386, x86_64 3. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: zsh security update Advisory ID: RHSA-2020:0853-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:0853 Issue date: 2020-03-17 CVE Names: CVE-2019-20044 ===================================================================== 1. Summary: An update for zsh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more. Security Fix(es): * zsh: insecure dropping of privileges when unsetting PRIVILEGED option (CVE-2019-20044) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Package List: Red Hat Enterprise Linux Client (v. 7): Source: zsh-5.0.2-34.el7_7.2.src.rpm x86_64: zsh-5.0.2-34.el7_7.2.x86_64.rpm zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm zsh-html-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: zsh-5.0.2-34.el7_7.2.src.rpm x86_64: zsh-5.0.2-34.el7_7.2.x86_64.rpm zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm zsh-html-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: zsh-5.0.2-34.el7_7.2.src.rpm ppc64: zsh-5.0.2-34.el7_7.2.ppc64.rpm zsh-debuginfo-5.0.2-34.el7_7.2.ppc64.rpm ppc64le: zsh-5.0.2-34.el7_7.2.ppc64le.rpm zsh-debuginfo-5.0.2-34.el7_7.2.ppc64le.rpm s390x: zsh-5.0.2-34.el7_7.2.s390x.rpm zsh-debuginfo-5.0.2-34.el7_7.2.s390x.rpm x86_64: zsh-5.0.2-34.el7_7.2.x86_64.rpm zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: zsh-debuginfo-5.0.2-34.el7_7.2.ppc64.rpm zsh-html-5.0.2-34.el7_7.2.ppc64.rpm ppc64le: zsh-debuginfo-5.0.2-34.el7_7.2.ppc64le.rpm zsh-html-5.0.2-34.el7_7.2.ppc64le.rpm s390x: zsh-debuginfo-5.0.2-34.el7_7.2.s390x.rpm zsh-html-5.0.2-34.el7_7.2.s390x.rpm x86_64: zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm zsh-html-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: zsh-5.0.2-34.el7_7.2.src.rpm x86_64: zsh-5.0.2-34.el7_7.2.x86_64.rpm zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: zsh-debuginfo-5.0.2-34.el7_7.2.x86_64.rpm zsh-html-5.0.2-34.el7_7.2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-20044 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. Installation note: Instructions on how to update your Apple Watch software are available at https://support.apple.com/kb/HT204641 To check the version on your Apple Watch, open the Apple Watch app on your iPhone and select "My Watch > General > About". Alternatively, on your watch, select "My Watch > General > About". -----BEGIN PGP SIGNATURE----- Version: BCPG v1.64 iQIcBAEDCAAGBQJezV7iAAoJEAc+Lhnt8tDNOiEP/10y27pTK/QbuSGW7HnZoJjg f2sHKU0JBCz7BjdgZHl6g+glsYPTojGGlIEa/r0ID9X74I41YS3cGvzmTQXcSdXV Xbs98UPjabCZOMiTW/LBxx25I78UptqhMhisrXnNXfu+lAYOxmJVQ0vbN9jd9za9 oKw1ydIi4aGfwPg8KOtMbxzE8wb8+SsRlHmXGh4qSmJ0o5BIvumdPMQRInM5Sdhp d/XWrgc7SPKervyfgvlylWE3KteDDSkk8d42wN4444pLQkVrKnaxGKHjWz01jcMF 1uB9ExsQbINGeR78wu8hD1wZke735shCwSyHHlSVf0iT/Ji3Zafy5dN79lMH5M8t x6ZmvDaPtNXGTaH41oTqsmyVoauy8ArWVMAuyi/ZdM6tM4J+7nEEAhrzvVOJ/0A2 nTdGZBDUeUmDLpcJwGw4h8MCYNqscHYNAPUJ2sLfyQhT6lC71yvJeKENwsK77hTC ZP+TFZbnbq7kETD/JknhGb8eC4DQ71NmlRNWpfKBId5bvXLRqiP/WHtwQk6XYCBN YNEOAUltQd4vKAI1ozjMh+RTI0EHNxTZCWJPawEkk2WhAytz+js+nJB4R9kp6N+k GghA5YOwLr/RveIzgm3fWEXOCR7b+7qxic+DPPULycnpdhDglbBWr4p8giQufnS2 2yHIY1iRg2jjw5hArbVE =9PNQ -----END PGP SIGNATURE----- . 8) - aarch64, ppc64le, s390x, x86_64 3

Trust: 2.52

sources: NVD: CVE-2019-20044 // JVNDB: JVNDB-2019-014656 // VULHUB: VHN-152551 // VULMON: CVE-2019-20044 // PACKETSTORM: 156919 // PACKETSTORM: 157883 // PACKETSTORM: 166306 // PACKETSTORM: 157877 // PACKETSTORM: 156805 // PACKETSTORM: 156794 // PACKETSTORM: 157879 // PACKETSTORM: 156818

AFFECTED PRODUCTS

vendor:fedoraprojectmodel:fedorascope:eqversion:30

Trust: 1.0

vendor:applemodel:mac os xscope:ltversion:10.13.6

Trust: 1.0

vendor:applemodel:mac os xscope:gteversion:10.15

Trust: 1.0

vendor:applemodel:mac os xscope:eqversion:10.14.6

Trust: 1.0

vendor:applemodel:mac os xscope:gteversion:10.14.0

Trust: 1.0

vendor:fedoraprojectmodel:fedorascope:eqversion:31

Trust: 1.0

vendor:applemodel:mac os xscope:ltversion:10.15.5

Trust: 1.0

vendor:applemodel:mac os xscope:eqversion:10.13.6

Trust: 1.0

vendor:applemodel:mac os xscope:gteversion:10.13.0

Trust: 1.0

vendor:debianmodel:linuxscope:eqversion:8.0

Trust: 1.0

vendor:applemodel:tvosscope:ltversion:13.4.5

Trust: 1.0

vendor:applemodel:ipadosscope:ltversion:13.5

Trust: 1.0

vendor:zshmodel:zshscope:ltversion:5.8

Trust: 1.0

vendor:applemodel:iphone osscope:ltversion:13.5

Trust: 1.0

vendor:debianmodel:linuxscope:eqversion:9.0

Trust: 1.0

vendor:applemodel:watchosscope:ltversion:6.2.5

Trust: 1.0

vendor:applemodel:mac os xscope:ltversion:10.14.6

Trust: 1.0

vendor:zshmodel:zshscope:eqversion:5.8

Trust: 0.8

sources: JVNDB: JVNDB-2019-014656 // NVD: CVE-2019-20044

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2019-20044
value: HIGH

Trust: 1.0

NVD: JVNDB-2019-014656
value: HIGH

Trust: 0.8

CNNVD: CNNVD-202002-1097
value: HIGH

Trust: 0.6

VULHUB: VHN-152551
value: HIGH

Trust: 0.1

VULMON: CVE-2019-20044
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2019-20044
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

NVD: JVNDB-2019-014656
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

VULHUB: VHN-152551
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2019-20044
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: JVNDB-2019-014656
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-152551 // VULMON: CVE-2019-20044 // JVNDB: JVNDB-2019-014656 // CNNVD: CNNVD-202002-1097 // NVD: CVE-2019-20044

PROBLEMTYPE DATA

problemtype:CWE-273

Trust: 1.9

sources: VULHUB: VHN-152551 // JVNDB: JVNDB-2019-014656 // NVD: CVE-2019-20044

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202002-1097

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202002-1097

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-014656

PATCH

title:Release Notesurl:http://zsh.sourceforge.net/releases.html

Trust: 0.8

title:zsh-announceurl:https://www.zsh.org/mla/zsh-announce/141

Trust: 0.8

title:Zsh Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=110771

Trust: 0.6

title:Red Hat: Important: zsh security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20200853 - Security Advisory

Trust: 0.1

title:Red Hat: Important: zsh security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20200978 - Security Advisory

Trust: 0.1

title:Red Hat: Important: zsh security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20200903 - Security Advisory

Trust: 0.1

title:Red Hat: Important: zsh security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20200892 - Security Advisory

Trust: 0.1

title:Debian CVElist Bug Report Logs: zsh: CVE-2019-20044: insecure dropping of privileges when unsetting PRIVILEGED optionurl:https://vulmon.com/vendoradvisory?qidtp=debian_cvelist_bugreportlogs&qid=65aa69745a1e62fea4c4cd467d3f7c8a

Trust: 0.1

title:Ubuntu Security Notice: USN-5325-1: Zsh vulnerabilitiesurl:https://vulmon.com/vendoradvisory?qidtp=ubuntu_security_notice&qid=USN-5325-1

Trust: 0.1

title:Amazon Linux 2: ALAS2-2020-1439url:https://vulmon.com/vendoradvisory?qidtp=amazon_linux2&qid=ALAS2-2020-1439

Trust: 0.1

title: - url:https://github.com/MRXXII/zsh

Trust: 0.1

sources: VULMON: CVE-2019-20044 // JVNDB: JVNDB-2019-014656 // CNNVD: CNNVD-202002-1097

EXTERNAL IDS

db:NVDid:CVE-2019-20044

Trust: 3.4

db:PACKETSTORMid:156818

Trust: 0.8

db:PACKETSTORMid:156805

Trust: 0.8

db:PACKETSTORMid:166306

Trust: 0.8

db:PACKETSTORMid:157883

Trust: 0.8

db:JVNDBid:JVNDB-2019-014656

Trust: 0.8

db:PACKETSTORMid:156924

Trust: 0.7

db:CNNVDid:CNNVD-202002-1097

Trust: 0.7

db:AUSCERTid:ESB-2020.0988

Trust: 0.6

db:AUSCERTid:ESB-2020.0973

Trust: 0.6

db:AUSCERTid:ESB-2020.1081

Trust: 0.6

db:AUSCERTid:ESB-2022.1105

Trust: 0.6

db:AUSCERTid:ESB-2020.4265

Trust: 0.6

db:AUSCERTid:ESB-2020.0952

Trust: 0.6

db:AUSCERTid:ESB-2022.1072

Trust: 0.6

db:AUSCERTid:ESB-2020.1861

Trust: 0.6

db:AUSCERTid:ESB-2020.0769

Trust: 0.6

db:CS-HELPid:SB2022031621

Trust: 0.6

db:PACKETSTORMid:156794

Trust: 0.2

db:PACKETSTORMid:156919

Trust: 0.2

db:PACKETSTORMid:157879

Trust: 0.2

db:PACKETSTORMid:157874

Trust: 0.1

db:CNVDid:CNVD-2020-50123

Trust: 0.1

db:VULHUBid:VHN-152551

Trust: 0.1

db:VULMONid:CVE-2019-20044

Trust: 0.1

db:PACKETSTORMid:157877

Trust: 0.1

sources: VULHUB: VHN-152551 // VULMON: CVE-2019-20044 // PACKETSTORM: 156919 // PACKETSTORM: 157883 // PACKETSTORM: 166306 // PACKETSTORM: 157877 // PACKETSTORM: 156805 // PACKETSTORM: 156794 // PACKETSTORM: 157879 // PACKETSTORM: 156818 // JVNDB: JVNDB-2019-014656 // CNNVD: CNNVD-202002-1097 // NVD: CVE-2019-20044

REFERENCES

url:https://support.apple.com/kb/ht211168

Trust: 2.4

url:https://support.apple.com/kb/ht211170

Trust: 2.4

url:https://nvd.nist.gov/vuln/detail/cve-2019-20044

Trust: 2.2

url:https://security.gentoo.org/glsa/202003-55

Trust: 1.9

url:https://support.apple.com/ht211168

Trust: 1.8

url:https://support.apple.com/ht211170

Trust: 1.8

url:https://support.apple.com/ht211171

Trust: 1.8

url:https://support.apple.com/ht211175

Trust: 1.8

url:https://support.apple.com/kb/ht211171

Trust: 1.8

url:https://support.apple.com/kb/ht211175

Trust: 1.8

url:http://seclists.org/fulldisclosure/2020/may/49

Trust: 1.8

url:http://seclists.org/fulldisclosure/2020/may/53

Trust: 1.8

url:http://seclists.org/fulldisclosure/2020/may/59

Trust: 1.8

url:http://seclists.org/fulldisclosure/2020/may/55

Trust: 1.8

url:http://zsh.sourceforge.net/releases.html

Trust: 1.8

url:https://github.com/xmb5/zsh-privileged-upgrade

Trust: 1.8

url:https://www.zsh.org/mla/zsh-announce/141

Trust: 1.8

url:https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html

Trust: 1.8

url:https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html

Trust: 1.8

url:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/pn5v7mphrrp7qnhoek56s7qgru53wun6/

Trust: 1.0

url:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/fp64ffizi2ckqoeaoi5a72pvqule7zzc/

Trust: 1.0

url:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/fp64ffizi2ckqoeaoi5a72pvqule7zzc/

Trust: 0.8

url:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/pn5v7mphrrp7qnhoek56s7qgru53wun6/

Trust: 0.8

url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20044

Trust: 0.8

url:https://packetstormsecurity.com/files/156924/red-hat-security-advisory-2020-0978-01.html

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.1861/

Trust: 0.6

url:https://vigilance.fr/vulnerability/zsh-privilege-escalation-via-zmodload-31713

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.0769/

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.0988/

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2022.1072

Trust: 0.6

url:https://packetstormsecurity.com/files/156805/red-hat-security-advisory-2020-0892-01.html

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.4265/

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.0973/

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.0952/

Trust: 0.6

url:https://support.apple.com/en-us/ht211170

Trust: 0.6

url:https://packetstormsecurity.com/files/156818/red-hat-security-advisory-2020-0903-01.html

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2020.1081/

Trust: 0.6

url:https://packetstormsecurity.com/files/166306/ubuntu-security-notice-usn-5325-1.html

Trust: 0.6

url:https://packetstormsecurity.com/files/157883/apple-security-advisory-2020-05-26-4.html

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2022.1105

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2022031621

Trust: 0.6

url:https://nvd.nist.gov/vuln/detail/cve-2020-9809

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9813

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9795

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9814

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9811

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9797

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9791

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9808

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9790

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9821

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9816

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9789

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-3878

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9815

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9793

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9794

Trust: 0.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-9812

Trust: 0.3

url:https://www.redhat.com/mailman/listinfo/rhsa-announce

Trust: 0.3

url:https://access.redhat.com/security/cve/cve-2019-20044

Trust: 0.3

url:https://bugzilla.redhat.com/):

Trust: 0.3

url:https://access.redhat.com/security/team/key/

Trust: 0.3

url:https://access.redhat.com/articles/11258

Trust: 0.3

url:https://access.redhat.com/security/team/contact/

Trust: 0.3

url:https://access.redhat.com/security/updates/classification/#important

Trust: 0.3

url:https://access.redhat.com/errata/rhsa-2020:0853

Trust: 0.2

url:https://ubuntu.com/security/notices/usn-5325-1

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9807

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9806

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9827

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9802

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2019-20503

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9800

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9805

Trust: 0.2

url:https://nvd.nist.gov/vuln/detail/cve-2020-9803

Trust: 0.2

url:https://cwe.mitre.org/data/definitions/273.html

Trust: 0.1

url:https://github.com/mrxxii/zsh

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://alas.aws.amazon.com/al2/alas-2020-1439.html

Trust: 0.1

url:https://creativecommons.org/licenses/by-sa/2.5

Trust: 0.1

url:https://security.gentoo.org/

Trust: 0.1

url:https://bugs.gentoo.org.

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9829

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9837

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-45444

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/zsh/5.4.2-3ubuntu3.2

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/zsh/5.8-3ubuntu1.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/zsh/5.8-6ubuntu0.1

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9822

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9804

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9826

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2019-14868

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9792

Trust: 0.1

url:https://support.apple.com/downloads/

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-3882

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9824

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9817

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9788

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9825

Trust: 0.1

url:https://wojciechregula.blog)

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2020:0892

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9819

Trust: 0.1

url:https://support.apple.com/kb/ht204641

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2020-9818

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2020:0903

Trust: 0.1

sources: VULHUB: VHN-152551 // VULMON: CVE-2019-20044 // PACKETSTORM: 156919 // PACKETSTORM: 157883 // PACKETSTORM: 166306 // PACKETSTORM: 157877 // PACKETSTORM: 156805 // PACKETSTORM: 156794 // PACKETSTORM: 157879 // PACKETSTORM: 156818 // JVNDB: JVNDB-2019-014656 // CNNVD: CNNVD-202002-1097 // NVD: CVE-2019-20044

CREDITS

Apple,Red Hat

Trust: 0.6

sources: CNNVD: CNNVD-202002-1097

SOURCES

db:VULHUBid:VHN-152551
db:VULMONid:CVE-2019-20044
db:PACKETSTORMid:156919
db:PACKETSTORMid:157883
db:PACKETSTORMid:166306
db:PACKETSTORMid:157877
db:PACKETSTORMid:156805
db:PACKETSTORMid:156794
db:PACKETSTORMid:157879
db:PACKETSTORMid:156818
db:JVNDBid:JVNDB-2019-014656
db:CNNVDid:CNNVD-202002-1097
db:NVDid:CVE-2019-20044

LAST UPDATE DATE

2025-07-29T20:38:25.447000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-152551date:2023-01-09T00:00:00
db:VULMONid:CVE-2019-20044date:2023-01-09T00:00:00
db:JVNDBid:JVNDB-2019-014656date:2020-03-06T00:00:00
db:CNNVDid:CNNVD-202002-1097date:2022-03-17T00:00:00
db:NVDid:CVE-2019-20044date:2024-11-21T04:37:56.997

SOURCES RELEASE DATE

db:VULHUBid:VHN-152551date:2020-02-24T00:00:00
db:VULMONid:CVE-2019-20044date:2020-02-24T00:00:00
db:PACKETSTORMid:156919date:2020-03-26T14:45:59
db:PACKETSTORMid:157883date:2020-05-29T19:07:47
db:PACKETSTORMid:166306date:2022-03-14T19:00:12
db:PACKETSTORMid:157877date:2020-05-29T19:04:22
db:PACKETSTORMid:156805date:2020-03-18T15:21:53
db:PACKETSTORMid:156794date:2020-03-18T15:00:12
db:PACKETSTORMid:157879date:2020-05-29T19:05:25
db:PACKETSTORMid:156818date:2020-03-19T15:22:41
db:JVNDBid:JVNDB-2019-014656date:2020-03-06T00:00:00
db:CNNVDid:CNNVD-202002-1097date:2020-02-24T00:00:00
db:NVDid:CVE-2019-20044date:2020-02-24T14:15:11.667