Test ID:	1.3.6.1.4.1.25623.1.1.1.1.2023.5462
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-5462-1)
Summary:	The remote host is missing an update for the Debian 'linux' package(s) announced via the DSA-5462-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'linux' package(s) announced via the DSA-5462-1 advisory. Vulnerability Insight: Tavis Ormandy discovered that under specific microarchitectural circumstances, a vector register in AMD Zen 2 CPUs may not be written to 0 correctly. This flaw allows an attacker to leak sensitive information across concurrent processes, hyper threads and virtualized guests. For details please refer to [link moved to references] and [link moved to references] This issue can also be mitigated by a microcode update through the amd64-microcode package or a system firmware (BIOS/UEFI) update. However, the initial microcode release by AMD only provides updates for second generation EPYC CPUs. Various Ryzen CPUs are also affected, but no updates are available yet. For the stable distribution (bookworm), this problem has been fixed in version 6.1.38-2. We recommend that you upgrade your linux packages. For the detailed security status of linux please refer to its security tracker page at: [link moved to references] Affected Software/OS: 'linux' package(s) on Debian 12. Solution: Please install the updated package(s). CVSS Score: 4.6 CVSS Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2023-20593 Debian Security Information: DSA-5459 (Google Search) https://www.debian.org/security/2023/dsa-5459 Debian Security Information: DSA-5461 (Google Search) https://www.debian.org/security/2023/dsa-5461 Debian Security Information: DSA-5462 (Google Search) https://www.debian.org/security/2023/dsa-5462 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HKKYIK2EASDNUV4I7EFJKNBVO3KCKGRR/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SD2G74BXS2SWOE3FIQJ6X76S3A7PDGML/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CP6WQO3CDPLE5O635N7TAL5KCZ6HZ4FE/ http://seclists.org/fulldisclosure/2023/Jul/43 https://cmpxchg8b.com/zenbleed.html https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7008 https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html https://lists.debian.org/debian-lts-announce/2023/07/msg00033.html https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html http://www.openwall.com/lists/oss-security/2023/07/24/3 http://www.openwall.com/lists/oss-security/2023/07/25/1 http://www.openwall.com/lists/oss-security/2023/07/25/12 http://www.openwall.com/lists/oss-security/2023/07/25/13 http://www.openwall.com/lists/oss-security/2023/07/25/14 http://www.openwall.com/lists/oss-security/2023/07/25/15 http://www.openwall.com/lists/oss-security/2023/07/25/16 http://www.openwall.com/lists/oss-security/2023/07/25/17 http://www.openwall.com/lists/oss-security/2023/07/25/5 http://www.openwall.com/lists/oss-security/2023/07/25/6 http://www.openwall.com/lists/oss-security/2023/07/26/1 http://www.openwall.com/lists/oss-security/2023/07/31/2 http://www.openwall.com/lists/oss-security/2023/08/08/6 http://www.openwall.com/lists/oss-security/2023/08/08/7 http://www.openwall.com/lists/oss-security/2023/08/08/8 http://www.openwall.com/lists/oss-security/2023/08/16/4 http://www.openwall.com/lists/oss-security/2023/08/16/5 http://www.openwall.com/lists/oss-security/2023/09/22/11 http://www.openwall.com/lists/oss-security/2023/09/22/9 http://www.openwall.com/lists/oss-security/2023/09/25/4 http://www.openwall.com/lists/oss-security/2023/09/25/7
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