vulnerability

Amazon Linux AMI: CVE-2021-28971: Security patch for kernel (ALAS-2021-1503)

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Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Mar 22, 2021
Added
May 26, 2021
Modified
Oct 14, 2022

Description

In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.

Solution

amazon-linux-upgrade-kernel

References

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