ID

VAR-201508-0365

CVE

CVE-2015-1819

TITLE

Libxml xmlreader Component denial of service vulnerability

DESCRIPTION

The xmlreader in libxml allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack. It supports multiple encoding formats, XPath analysis, Well-formed and valid verification, etc. xmlreader is one of the components used to read XML. A security vulnerability exists in libxml's xmlreader component. Alternatively, you may manually check for software updates by selecting "Settings -> System -> Software Update -> Update Software.". To check the current version of software, select "Settings -> General -> About". - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201701-37 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: libxml2: Multiple vulnerabilities Date: January 16, 2017 Bugs: #564776, #566374, #572878, #573820, #577998, #582538, #582540, #583888, #589816, #597112, #597114, #597116 ID: 201701-37 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in libxml2, the worst of which could lead to the execution of arbitrary code. Background ========== libxml2 is the XML (eXtended Markup Language) C parser and toolkit initially developed for the Gnome project. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libxml2 < 2.9.4-r1 >= 2.9.4-r1 Description =========== Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Workaround ========== There is no known workaround at this time. Resolution ========== All libxml2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.4-r1" References ========== [ 1 ] CVE-2015-1819 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1819 [ 2 ] CVE-2015-5312 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-5312 [ 3 ] CVE-2015-7497 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7497 [ 4 ] CVE-2015-7498 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7498 [ 5 ] CVE-2015-7499 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7499 [ 6 ] CVE-2015-7500 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7500 [ 7 ] CVE-2015-7941 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7941 [ 8 ] CVE-2015-7942 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7942 [ 9 ] CVE-2015-8035 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8035 [ 10 ] CVE-2015-8242 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8242 [ 11 ] CVE-2015-8806 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8806 [ 12 ] CVE-2016-1836 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1836 [ 13 ] CVE-2016-1838 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1838 [ 14 ] CVE-2016-1839 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1839 [ 15 ] CVE-2016-1840 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1840 [ 16 ] CVE-2016-2073 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2073 [ 17 ] CVE-2016-3627 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-3627 [ 18 ] CVE-2016-3705 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-3705 [ 19 ] CVE-2016-4483 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4483 [ 20 ] CVE-2016-4658 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4658 [ 21 ] CVE-2016-5131 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-5131 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201701-37 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 2017 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. http://creativecommons.org/licenses/by-sa/2.5 . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 APPLE-SA-2016-03-21-2 watchOS 2.2 watchOS 2.2 is now available and addresses the following: Disk Images Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue existed in the parsing of disk images. This issue was addressed through improved memory handling. CVE-ID CVE-2016-1717 : Frank Graziano of Yahoo! Pentest Team FontParser Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution Description: A memory corruption issue was addressed through improved memory handling. CVE-ID CVE-2016-1740 : HappilyCoded (ant4g0nist and r3dsm0k3) working with Trend Micro's Zero Day Initiative (ZDI) HTTPProtocol Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: A remote attacker may be able to execute arbitrary code Description: Multiple vulnerabilities existed in nghttp2 versions prior to 1.6.0, the most serious of which may have led to remote code execution. These were addressed by updating nghttp2 to version 1.6.0. CVE-ID CVE-2015-8659 IOHIDFamily Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to execute arbitrary code with kernel privileges Description: Multiple memory corruption issues were addressed through improved memory handling. CVE-ID CVE-2016-1719 : Ian Beer of Google Project Zero IOHIDFamily Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to determine kernel memory layout Description: A memory corruption issue was addressed through improved memory handling. CVE-ID CVE-2016-1748 : Brandon Azad Kernel Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to execute arbitrary code with kernel privileges Description: Multiple memory corruption issues were addressed through improved memory handling. CVE-ID CVE-2016-1720 : Ian Beer of Google Project Zero CVE-2016-1721 : Ian Beer of Google Project Zero and Ju Zhu of Trend Micro CVE-2016-1754 : Lufeng Li of Qihoo 360 Vulcan Team CVE-2016-1755 : Ian Beer of Google Project Zero Kernel Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to execute arbitrary code with kernel privileges Description: A use after free issue was addressed through improved memory management. CVE-ID CVE-2016-1750 : CESG Kernel Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to execute arbitrary code with kernel privileges Description: Multiple integer overflows were addressed through improved input validation. CVE-ID CVE-2016-1753 : Juwei Lin Trend Micro working with Trend Micro's Zero Day Initiative (ZDI) Kernel Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to bypass code signing Description: A permissions issue existed in which execute permission was incorrectly granted. This issue was addressed through improved permission validation. CVE-ID CVE-2016-1751 : Eric Monti of Square Mobile Security Kernel Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to cause a denial of service Description: A denial of service issue was addressed through improved validation. CVE-ID CVE-2016-1752 : CESG libxml2 Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: Processing maliciously crafted XML may lead to unexpected application termination or arbitrary code execution Description: Multiple memory corruption issues were addressed through improved memory handling. CVE-ID CVE-2015-1819 CVE-2015-5312 : David Drysdale of Google CVE-2015-7499 CVE-2015-7500 : Kostya Serebryany of Google CVE-2015-7942 : Kostya Serebryany of Google CVE-2015-8035 : gustavo.grieco CVE-2015-8242 : Hugh Davenport CVE-2016-1761 : wol0xff working with Trend Micro's Zero Day Initiative (ZDI) CVE-2016-1762 libxslt Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: Processing maliciously crafted XML may lead to unexpected application termination or arbitrary code execution Description: A type confusion issue was addressed through improved memory handling. CVE-ID CVE-2015-7995 : puzzor Messages Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An attacker who is able to bypass Apple's certificate pinning, intercept TLS connections, inject messages, and record encrypted attachment-type messages may be able to read attachments Description: A cryptographic issue was addressed by rejecting duplicate messages on the client. CVE-ID CVE-2016-1788 : Christina Garman, Matthew Green, Gabriel Kaptchuk, Ian Miers, and Michael Rushanan of Johns Hopkins University Security Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: Processing a maliciously crafted certificate may lead to arbitrary code execution Description: A memory corruption issue existed in the ASN.1 decoder. This issue was addressed through improved input validation. CVE-ID CVE-2016-1950 : Francis Gabriel of Quarkslab syslog Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed through improved memory handling. CVE-ID CVE-2016-1722 : Joshua J. Drake and Nikias Bassen of Zimperium zLabs TrueTypeScaler Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A memory corruption issue existed in the processing of font files. This issue was addressed through improved input validation. CVE-ID CVE-2016-1775 : 0x1byte working with Trend Micro's Zero Day Initiative (ZDI) WebKit Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed through improved memory handling. CVE-ID CVE-2016-1723 : Apple CVE-2016-1724 : Apple CVE-2016-1725 : Apple CVE-2016-1726 : Apple CVE-2016-1727 : Apple Wi-Fi Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes Impact: An attacker with a privileged network position may be able to execute arbitrary code Description: A frame validation and memory corruption issue existed for a given ethertype. This issue was addressed through additional ethertype validation and improved memory handling. For the oldstable distribution (wheezy), these problems have been fixed in version 2.8.0+dfsg1-7+wheezy5. For the stable distribution (jessie), these problems have been fixed in version 2.9.1+dfsg1-5+deb8u1. For the testing distribution (stretch), these problems have been fixed in version 2.9.3+dfsg1-1 or earlier versions. For the unstable distribution (sid), these problems have been fixed in version 2.9.3+dfsg1-1 or earlier versions. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libxml2 security update Advisory ID: RHSA-2015:2550-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-2550.html Issue date: 2015-12-07 CVE Names: CVE-2015-1819 CVE-2015-5312 CVE-2015-7497 CVE-2015-7498 CVE-2015-7499 CVE-2015-7500 CVE-2015-7941 CVE-2015-7942 CVE-2015-8241 CVE-2015-8242 CVE-2015-8317 ===================================================================== 1. Summary: Updated libxml2 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, 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 libxml2 library is a development toolbox providing the implementation of various XML standards. Several denial of service flaws were found in libxml2, a library providing support for reading, modifying, and writing XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU, leak potentially sensitive information, or in certain cases crash the application. (CVE-2015-1819, CVE-2015-5312, CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, CVE-2015-7500 CVE-2015-7941, CVE-2015-7942, CVE-2015-8241, CVE-2015-8242, CVE-2015-8317, BZ#1213957, BZ#1281955) Red Hat would like to thank the GNOME project for reporting CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, CVE-2015-7500, CVE-2015-8241, CVE-2015-8242, and CVE-2015-8317. Upstream acknowledges Kostya Serebryany of Google as the original reporter of CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, and CVE-2015-7500; Hugh Davenport as the original reporter of CVE-2015-8241 and CVE-2015-8242; and Hanno Boeck as the original reporter of CVE-2015-8317. The CVE-2015-1819 issue was discovered by Florian Weimer of Red Hat Product Security. All libxml2 users are advised to upgrade to these updated packages, which contain a backported patch to correct these issues. The desktop must be restarted (log out, then log back in) for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1211278 - CVE-2015-1819 libxml2: denial of service processing a crafted XML document 1213957 - libxml2: out-of-bounds memory access when parsing an unclosed HTML comment 1274222 - CVE-2015-7941 libxml2: Out-of-bounds memory access 1276297 - CVE-2015-7942 libxml2: heap-based buffer overflow in xmlParseConditionalSections() 1276693 - CVE-2015-5312 libxml2: CPU exhaustion when processing specially crafted XML input 1281862 - CVE-2015-7497 libxml2: Heap-based buffer overflow in xmlDictComputeFastQKey 1281879 - CVE-2015-7498 libxml2: Heap-based buffer overflow in xmlParseXmlDecl 1281925 - CVE-2015-7499 libxml2: Heap-based buffer overflow in xmlGROW 1281930 - CVE-2015-8317 libxml2: Out-of-bounds heap read when parsing file with unfinished xml declaration 1281936 - CVE-2015-8241 libxml2: Buffer overread with XML parser in xmlNextChar 1281943 - CVE-2015-7500 libxml2: Heap buffer overflow in xmlParseMisc 1281950 - CVE-2015-8242 libxml2: Buffer overread with HTML parser in push mode in xmlSAX2TextNode 1281955 - libxml2: Multiple out-of-bounds reads in xmlDictComputeFastKey.isra.2 and xmlDictAddString.isra.O 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: libxml2-2.9.1-6.el7_2.2.src.rpm x86_64: libxml2-2.9.1-6.el7_2.2.i686.rpm libxml2-2.9.1-6.el7_2.2.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-python-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.2.i686.rpm libxml2-devel-2.9.1-6.el7_2.2.x86_64.rpm libxml2-static-2.9.1-6.el7_2.2.i686.rpm libxml2-static-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libxml2-2.9.1-6.el7_2.2.src.rpm x86_64: libxml2-2.9.1-6.el7_2.2.i686.rpm libxml2-2.9.1-6.el7_2.2.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-python-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.2.i686.rpm libxml2-devel-2.9.1-6.el7_2.2.x86_64.rpm libxml2-static-2.9.1-6.el7_2.2.i686.rpm libxml2-static-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libxml2-2.9.1-6.el7_2.2.src.rpm aarch64: libxml2-2.9.1-6.el7_2.2.aarch64.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.aarch64.rpm libxml2-devel-2.9.1-6.el7_2.2.aarch64.rpm libxml2-python-2.9.1-6.el7_2.2.aarch64.rpm ppc64: libxml2-2.9.1-6.el7_2.2.ppc.rpm libxml2-2.9.1-6.el7_2.2.ppc64.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.ppc.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.ppc64.rpm libxml2-devel-2.9.1-6.el7_2.2.ppc.rpm libxml2-devel-2.9.1-6.el7_2.2.ppc64.rpm libxml2-python-2.9.1-6.el7_2.2.ppc64.rpm ppc64le: libxml2-2.9.1-6.el7_2.2.ppc64le.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.ppc64le.rpm libxml2-devel-2.9.1-6.el7_2.2.ppc64le.rpm libxml2-python-2.9.1-6.el7_2.2.ppc64le.rpm s390x: libxml2-2.9.1-6.el7_2.2.s390.rpm libxml2-2.9.1-6.el7_2.2.s390x.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.s390.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.s390x.rpm libxml2-devel-2.9.1-6.el7_2.2.s390.rpm libxml2-devel-2.9.1-6.el7_2.2.s390x.rpm libxml2-python-2.9.1-6.el7_2.2.s390x.rpm x86_64: libxml2-2.9.1-6.el7_2.2.i686.rpm libxml2-2.9.1-6.el7_2.2.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.2.i686.rpm libxml2-devel-2.9.1-6.el7_2.2.x86_64.rpm libxml2-python-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): aarch64: libxml2-debuginfo-2.9.1-6.el7_2.2.aarch64.rpm libxml2-static-2.9.1-6.el7_2.2.aarch64.rpm ppc64: libxml2-debuginfo-2.9.1-6.el7_2.2.ppc.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.ppc64.rpm libxml2-static-2.9.1-6.el7_2.2.ppc.rpm libxml2-static-2.9.1-6.el7_2.2.ppc64.rpm ppc64le: libxml2-debuginfo-2.9.1-6.el7_2.2.ppc64le.rpm libxml2-static-2.9.1-6.el7_2.2.ppc64le.rpm s390x: libxml2-debuginfo-2.9.1-6.el7_2.2.s390.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.s390x.rpm libxml2-static-2.9.1-6.el7_2.2.s390.rpm libxml2-static-2.9.1-6.el7_2.2.s390x.rpm x86_64: libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-static-2.9.1-6.el7_2.2.i686.rpm libxml2-static-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libxml2-2.9.1-6.el7_2.2.src.rpm x86_64: libxml2-2.9.1-6.el7_2.2.i686.rpm libxml2-2.9.1-6.el7_2.2.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.2.i686.rpm libxml2-devel-2.9.1-6.el7_2.2.x86_64.rpm libxml2-python-2.9.1-6.el7_2.2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: libxml2-debuginfo-2.9.1-6.el7_2.2.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.2.x86_64.rpm libxml2-static-2.9.1-6.el7_2.2.i686.rpm libxml2-static-2.9.1-6.el7_2.2.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-2015-1819 https://access.redhat.com/security/cve/CVE-2015-5312 https://access.redhat.com/security/cve/CVE-2015-7497 https://access.redhat.com/security/cve/CVE-2015-7498 https://access.redhat.com/security/cve/CVE-2015-7499 https://access.redhat.com/security/cve/CVE-2015-7500 https://access.redhat.com/security/cve/CVE-2015-7941 https://access.redhat.com/security/cve/CVE-2015-7942 https://access.redhat.com/security/cve/CVE-2015-8241 https://access.redhat.com/security/cve/CVE-2015-8242 https://access.redhat.com/security/cve/CVE-2015-8317 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFWZZK6XlSAg2UNWIIRAlx5AKCfIxP9TLM+V/vmQq6MVeUpjiGltgCgnOgZ IOmptwborGrgz5fLqra3STg= =bVgd -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . ============================================================================ Ubuntu Security Notice USN-2812-1 November 16, 2015 libxml2 vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.10 - Ubuntu 15.04 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: Several security issues were fixed in libxml2. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-1819) Michal Zalewski discovered that libxml2 incorrectly handled certain XML data. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-7941) Kostya Serebryany discovered that libxml2 incorrectly handled certain XML data. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-7942) Gustavo Grieco discovered that libxml2 incorrectly handled certain XML data. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-8035) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 15.10: libxml2 2.9.2+zdfsg1-4ubuntu0.1 Ubuntu 15.04: libxml2 2.9.2+dfsg1-3ubuntu0.1 Ubuntu 14.04 LTS: libxml2 2.9.1+dfsg1-3ubuntu4.5 Ubuntu 12.04 LTS: libxml2 2.7.8.dfsg-5.1ubuntu4.12 After a standard system update you need to reboot your computer to make all the necessary changes

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

resource management error

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Florian Weimer

SOURCES

LAST UPDATE DATE

2025-08-12T21:15:55.978000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE