Test ID:	1.3.6.1.4.1.25623.1.1.1.1.2023.5459
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-5459-1)
Summary:	The remote host is missing an update for the Debian 'amd64-microcode' package(s) announced via the DSA-5459-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'amd64-microcode' package(s) announced via the DSA-5459-1 advisory. Vulnerability Insight: Tavis Ormandy discovered that under specific microarchitectural circumstances, a vector register in Zen 2 CPUs may not be written to 0 correctly. This flaw allows an attacker to leak register contents across concurrent processes, hyper threads and virtualized guests. For details please refer to [link moved to references] [link moved to references] 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. Fixes will be provided in a later update once they are released. For more specific details and target dates please refer to the AMD advisory at [link moved to references] For the oldstable distribution (bullseye), this problem has been fixed in version 3.20230719.1~ deb11u1. Additionally the update contains a fix for CVE-2019-9836. For the stable distribution (bookworm), this problem has been fixed in version 3.20230719.1~ deb12u1. We recommend that you upgrade your amd64-microcode packages. For the detailed security status of amd64-microcode please refer to its security tracker page at: [link moved to references] Affected Software/OS: 'amd64-microcode' package(s) on Debian 11, 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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