Vulmon
Amazon Linux 2 Security Advisory: ALAS-2022-1842
Advisory Release Date: 2022-09-01 21:09 Pacific
Advisory Updated Date: 2022-09-14 00:02 Pacific
Severity:
Medium
References:
CVE-2022-21233
Issue Overview:
A flaw was found in hw. The APIC can operate in xAPIC mode (also known as a legacy mode), in which APIC configuration registers are exposed through a memory-mapped I/O (MMIO) page. This flaw allows an attacker who can execute code on a target CPU to query the APIC configuration page. When reading the APIC configuration page with an unaligned read from the MMIO page, the registers may return stale data from previous requests made by the same processor core to the same configuration page, leading to unauthorized access. (CVE-2022-21233)
Affected Packages:
microcode_ctl
Issue Correction:
Run yum update microcode_ctl to update your system.
New Packages:
i686:
microcode_ctl-2.1-47.amzn2.0.13.i686
microcode_ctl-debuginfo-2.1-47.amzn2.0.13.i686
src:
microcode_ctl-2.1-47.amzn2.0.13.src
x86_64:
microcode_ctl-2.1-47.amzn2.0.13.x86_64
microcode_ctl-debuginfo-2.1-47.amzn2.0.13.x86_64