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CentOS Linux: CVE-2020-27170: Important: kernel security and bug fix update (Multiple Advisories)

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CentOS Linux: CVE-2020-27170: Important: kernel security and bug fix update (Multiple Advisories)

Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
03/20/2021
Created
06/11/2021
Added
06/09/2021
Modified
05/25/2023

Description

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • CVE-2020-27170

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