Test ID:	1.3.6.1.4.1.25623.1.1.10.2022.0081
Category:	Mageia Linux Local Security Checks
Title:	Mageia: Security Advisory (MGASA-2022-0081)
Summary:	The remote host is missing an update for the 'expat' package(s) announced via the MGASA-2022-0081 advisory.
Description:	Summary: The remote host is missing an update for the 'expat' package(s) announced via the MGASA-2022-0081 advisory. Vulnerability Insight: Passing malformed 2- and 3-byte UTF-8 sequences (e.g. from start tag names) to the XML processing application on top of Expat can cause arbitrary damage (e.g. code execution) depending on how invalid UTF-8 is handled inside the XML processor, validation was not their job but Expat's. Exploits with code execution are known to exist. (CVE-2022-25235) Passing (one or more) namespace separator characters in 'xmlns[:prefix]' attribute values made Expat send malformed tag names to the XML processor on top of Expat which can cause arbitrary damage (e.g. code execution) depending on such unexpectable cases are handled inside the XML processor, validation was not their job but Expat's. Exploits with code execution are known to exist. (CVE-2022-25236) Fix stack exhaustion in doctype parsing that could be triggered by e.g. a 2 megabytes file with a large number of opening braces. Expected impact is denial of service or potentially arbitrary code execution. (CVE-2022-25313) Fix integer overflow in function copyString, only affects the encoding name parameter at parser creation time which is often hardcoded (rather than user input), takes a value in the gigabytes to trigger, and a 64-bit machine. Expected impact is denial of service. (CVE-2022-25314) Fix integer overflow in function storeRawNames, needs input in the gigabytes and a 64-bit machine. Expected impact is denial of service or potentially arbitrary code execution. (CVE-2022-25315) Affected Software/OS: 'expat' package(s) on Mageia 8. Solution: Please install the updated package(s). CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2022-25235 https://security.netapp.com/advisory/ntap-20220303-0008/ Debian Security Information: DSA-5085 (Google Search) https://www.debian.org/security/2022/dsa-5085 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/ https://security.gentoo.org/glsa/202209-24 https://github.com/libexpat/libexpat/pull/562 https://www.oracle.com/security-alerts/cpuapr2022.html https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html http://www.openwall.com/lists/oss-security/2022/02/19/1 Common Vulnerability Exposure (CVE) ID: CVE-2022-25236 http://packetstormsecurity.com/files/167238/Zoom-XMPP-Stanza-Smuggling-Remote-Code-Execution.html https://github.com/libexpat/libexpat/pull/561 Common Vulnerability Exposure (CVE) ID: CVE-2022-25313 https://github.com/libexpat/libexpat/pull/558 Common Vulnerability Exposure (CVE) ID: CVE-2022-25314 https://github.com/libexpat/libexpat/pull/560 Common Vulnerability Exposure (CVE) ID: CVE-2022-25315 https://github.com/libexpat/libexpat/pull/559
Copyright	Copyright (C) 2022 Greenbone AG

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