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Amazon Linux AMI: CVE-2021-29154: Security patch for kernel (ALAS-2021-1503)

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Amazon Linux AMI: CVE-2021-29154: Security patch for kernel (ALAS-2021-1503)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
04/08/2021
Created
05/29/2021
Added
05/26/2021
Modified
10/14/2022

Description

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2021-1503
  • CVE-2021-29154
  • USN-4912-1
  • USN-4916-1
  • USN-4916-2
  • USN-4917-1

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