Amazon Linux 2 Security Advisory: ALAS-2022-1762
Advisory Release Date: 2022-03-07 23:34 Pacific
Advisory Updated Date: 2024-05-09 19:16 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
2024-05-09: CVE-2021-33117 was added to this advisory.
A flaw was found in microcode. Under complex microarchitectural conditions, an unexpected code breakpoint may cause a system hang. The hang was observed on a Skylake server processor, and subsequent analysis indicated additional potentially affected processors. This flaw allows a possible temporary denial of service (TDOS) to occur. (CVE-2021-0127)
Hardware allows activation of test and debug logic at runtime for some Intel(R) processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)
Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version MR7, may allow a local attacker to potentially enable information disclosure via local access. (CVE-2021-33117)
Affected Packages:
microcode_ctl
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update microcode_ctl to update your system.
i686:
microcode_ctl-2.1-47.amzn2.0.11.i686
microcode_ctl-debuginfo-2.1-47.amzn2.0.11.i686
src:
microcode_ctl-2.1-47.amzn2.0.11.src
x86_64:
microcode_ctl-2.1-47.amzn2.0.11.x86_64
microcode_ctl-debuginfo-2.1-47.amzn2.0.11.x86_64