ID

VAR-201401-0579

CVE

CVE-2013-0340

TITLE

Expat Code problem vulnerability

DESCRIPTION

expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE. Expat is prone to multiple denial-of-service vulnerabilities. Successful exploits will allow attackers to consume large amounts of memory and cause a crash through specially crafted XML containing malicious attributes. Expat 2.1.0 and prior versions are vulnerable. Expat is a C language-based XML parser library developed by American software developer Jim Clark, which uses a stream-oriented parser. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-09-20-1 iOS 15 and iPadOS 15 iOS 15 and iPadOS 15 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212814. Accessory Manager Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory consumption issue was addressed with improved memory handling. CVE-2021-30837: Siddharth Aeri (@b1n4r1b01) AppleMobileFileIntegrity Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A local attacker may be able to read sensitive information Description: This issue was addressed with improved checks. CVE-2021-30811: an anonymous researcher working with Compartir Apple Neural Engine Available for devices with Apple Neural Engine: iPhone 8 and later, iPad Pro (3rd generation) and later, iPad Air (3rd generation) and later, and iPad mini (5th generation) Impact: A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine Description: A memory corruption issue was addressed with improved memory handling. CVE-2021-30838: proteas wang CoreML Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A local attacker may be able to cause unexpected application termination or arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30825: hjy79425575 working with Trend Micro Zero Day Initiative Face ID Available for devices with Face ID: iPhone X, iPhone XR, iPhone XS (all models), iPhone 11 (all models), iPhone 12 (all models), iPad Pro (11-inch), and iPad Pro (3rd generation) Impact: A 3D model constructed to look like the enrolled user may be able to authenticate via Face ID Description: This issue was addressed by improving Face ID anti- spoofing models. CVE-2021-30863: Wish Wu (吴潍浠 @wish_wu) of Ant-financial Light-Year Security Lab FontParser Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted dfont file may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30841: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30842: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-30843: Xingwei Lin of Ant Security Light-Year Lab ImageIO Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-30835: Ye Zhang of Baidu Security CVE-2021-30847: Mike Zhang of Pangu Lab Kernel Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A race condition was addressed with improved locking. CVE-2021-30857: Zweig of Kunlun Lab libexpat Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause a denial of service Description: This issue was addressed by updating expat to version 2.4.1. CVE-2013-0340: an anonymous researcher Model I/O Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted USD file may disclose memory contents Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-30819: Apple Preferences Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An application may be able to access restricted files Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. CVE-2021-30855: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) Preferences Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: A logic issue was addressed with improved state management. CVE-2021-30854: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) Siri Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A local attacker may be able to view contacts from the lock screen Description: A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management. CVE-2021-30815: an anonymous researcher Telephony Available for: iPhone SE (1st generation), iPad Pro 12.9-inch, iPad Air 2, iPad (5th generation), and iPad mini 4 Impact: In certain situations, the baseband would fail to enable integrity and ciphering protection Description: A logic issue was addressed with improved state management. CVE-2021-30826: CheolJun Park, Sangwook Bae and BeomSeok Oh of KAIST SysSec Lab WebKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved memory handling. CVE-2021-30846: Sergei Glazunov of Google Project Zero WebKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may lead to code execution Description: A memory corruption issue was addressed with improved memory handling. CVE-2021-30848: Sergei Glazunov of Google Project Zero WebKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2021-30849: Sergei Glazunov of Google Project Zero WebKit Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may lead to code execution Description: A memory corruption vulnerability was addressed with improved locking. CVE-2021-30851: Samuel Groß of Google Project Zero Wi-Fi Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker in physical proximity may be able to force a user onto a malicious Wi-Fi network during device setup Description: An authorization issue was addressed with improved state management. CVE-2021-30810: an anonymous researcher Additional recognition Assets We would like to acknowledge Cees Elzinga for their assistance. Bluetooth We would like to acknowledge an anonymous researcher for their assistance. File System We would like to acknowledge Siddharth Aeri (@b1n4r1b01) for their assistance. Sandbox We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive Security for their assistance. UIKit We would like to acknowledge an anonymous researcher for their assistance. Installation note: This update is available through iTunes and Software Update on your iOS device, and will not appear in your computer's Software Update application, or in the Apple Downloads site. Make sure you have an Internet connection and have installed the latest version of iTunes from https://www.apple.com/itunes/ iTunes and Software Update on the device will automatically check Apple's update server on its weekly schedule. When an update is detected, it is downloaded and the option to be installed is presented to the user when the iOS device is docked. We recommend applying the update immediately if possible. Selecting Don't Install will present the option the next time you connect your iOS device. The automatic update process may take up to a week depending on the day that iTunes or the device checks for updates. You may manually obtain the update via the Check for Updates button within iTunes, or the Software Update on your device. To check that the iPhone, iPod touch, or iPad has been updated: * Navigate to Settings * Select General * Select About * The version after applying this update will be "15.0" Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEePiLW1MrMjw19XzoeC9qKD1prhgFAmFI88sACgkQeC9qKD1p rhjVNxAAx5mEiw7NE47t6rO8Y93xPrNSk+7xcqPeBHUCg+rLmqxtOhITRVUw0QLH sBIwSVK1RxxRjasBfgwbh1jyMYg6EzfKNQOeZGnjLA4WRmIj728aGehJ56Z/ggpJ awJNPvfzyoSdFgdwntj2FDih/d4oJmMwIyhNvqGrSwuybq9sznxJsTbpRbKWFhiz y/phwVywo0A//XBiup3hrscl5SmxO44WBDlL+MAv4FnRPk7IGbBCfO8HnhO/9j1n uSNoKtnJt2f6/06E0wMLStBSESKPSmKSz65AtR6h1oNytEuJtyHME8zOtz/Z9hlJ fo5f6tN6uCgYgYs7dyonWk5qiL7cue3ow58dPjZuNmqxFeu5bCc/1G47LDcdwoAg o0aU22MEs4wKdBWrtFI40BQ5LEmFrh3NM82GwFYDBz92x7B9SpXMau6F82pCvvyG wNbRL5PzHUMa1/LfVcoOyWk0gZBeD8/GFzNmwBeZmBMlpoPRo5bkyjUn8/ABG+Ie 665EHgGYs5BIV20Gviax0g4bjGHqEndfxdjyDHzJ87d65iA5uYdOiw61WpHq9kwH hK4e6BF0CahTrpz6UGVuOA/VMMDv3ZqhW+a95KBzDa7dHVnokpV+WiMJcmoEJ5gI 5ovpqig9qjf7zMv3+3Mlij0anQ24w7+MjEBk7WDG+2al83GCMAE= =nkJd -----END PGP SIGNATURE----- . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201701-21 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Expat: Multiple vulnerabilities Date: January 11, 2017 Bugs: #458742, #555642, #577928, #583268, #585510 ID: 201701-21 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in Expat, the worst of which may allow execution of arbitrary code. Background ========== Expat is a set of XML parsing libraries. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/expat < 2.2.0-r1 >= 2.2.0-r1 Description =========== Multiple vulnerabilities have been discovered in Expat. Please review the CVE identifiers referenced below for details. This attack could also be used against automated systems that arbitrarily process XML files. Workaround ========== There is no known workaround at this time. Resolution ========== All Expat users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/expat-2.2.0-r1" References ========== [ 1 ] CVE-2012-6702 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6702 [ 2 ] CVE-2013-0340 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0340 [ 3 ] CVE-2015-1283 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1283 [ 4 ] CVE-2016-0718 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0718 [ 5 ] CVE-2016-4472 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4472 [ 6 ] CVE-2016-5300 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-5300 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201701-21 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 . CVE-2021-30811: an anonymous researcher working with Compartir bootp Available for: Apple Watch Series 3 and later Impact: A device may be passively tracked by its WiFi MAC address Description: A user privacy issue was addressed by removing the broadcast MAC address. CVE-2021-30808: Csaba Fitzl (@theevilbit) of Offensive Security Entry added October 25, 2021 WebKit Available for: Apple Watch Series 3 and later Impact: Visiting a maliciously crafted website may reveal a user's browsing history Description: The issue was resolved with additional restrictions on CSS compositing. CVE-2021-30818: Amar Menezes (@amarekano) of Zon8Research Entry added October 25, 2021 WebKit Available for: Apple Watch Series 3 and later Impact: An attacker in a privileged network position may be able to bypass HSTS Description: A logic issue was addressed with improved restrictions. Alternatively, on your watch, select "My Watch > General > About". Apple is aware of a report that this issue may have been actively exploited. Entry added September 20, 2021 CoreML We would like to acknowledge hjy79425575 working with Trend Micro Zero Day Initiative for their assistance

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

code problem

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Apple

SOURCES

LAST UPDATE DATE

2026-06-30T22:21:04.696000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE