Test ID:	1.3.6.1.4.1.25623.1.0.844973
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4985-1)
Summary:	The remote host is missing an update for the 'intel-microcode' package(s) announced via the USN-4985-1 advisory.
Description:	Summary: The remote host is missing an update for the 'intel-microcode' package(s) announced via the USN-4985-1 advisory. Vulnerability Insight: It was discovered that some Intel processors may not properly invalidate cache entries used by Intel Virtualization Technology for Directed I/O (VT-d). This may allow a local user to perform a privilege escalation attack. (CVE-2020-24489) Joseph Nuzman discovered that some Intel processors may not properly apply EIBRS mitigations (originally developed for CVE-2017-5715) and hence may allow unauthorized memory reads via sidechannel attacks. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2020-24511) Travis Downs discovered that some Intel processors did not properly flush cache-lines for trivial-data values. This may allow an unauthorized user to infer the presence of these trivial-data-cache-lines via timing sidechannel attacks. A local attacker could use this to expose sensitive information. (CVE-2020-24512) It was discovered that certain Intel Atom processors could expose memory contents stored in microarchitectural buffers. A local attacker could use this to expose sensitive information. (CVE-2020-24513) Affected Software/OS: 'intel-microcode' package(s) on Ubuntu 14.04, Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10, Ubuntu 21.04. Solution: Please install the updated package(s). CVSS Score: 4.6 CVSS Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-24489 Debian Security Information: DSA-4934 (Google Search) https://www.debian.org/security/2021/dsa-4934 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00442.html https://lists.debian.org/debian-lts-announce/2021/07/msg00022.html Common Vulnerability Exposure (CVE) ID: CVE-2020-24511 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html Common Vulnerability Exposure (CVE) ID: CVE-2020-24512 Common Vulnerability Exposure (CVE) ID: CVE-2020-24513 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00465.html
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