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Amazon Linux AMI: CVE-2020-27825: Security patch for kernel (ALAS-2021-1480)

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Amazon Linux AMI: CVE-2020-27825: Security patch for kernel (ALAS-2021-1480)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:C)
Published
12/11/2020
Created
02/20/2021
Added
02/18/2021
Modified
02/18/2021

Description

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2021-1480
  • CVE-2020-27825

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