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Test ID:1.3.6.1.4.1.25623.1.1.12.2023.6244.1
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-6244-1)
Summary:The remote host is missing an update for the 'amd64-microcode' package(s) announced via the USN-6244-1 advisory.
Description:Summary:
The remote host is missing an update for the 'amd64-microcode' package(s) announced via the USN-6244-1 advisory.

Vulnerability Insight:
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local attacker
could use this to expose sensitive information.

Affected Software/OS:
'amd64-microcode' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 23.04.

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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