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Debian: CVE-2020-27171: linux -- security update

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Debian: CVE-2020-27171: linux -- security update

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:P)
Published
03/20/2021
Created
04/01/2021
Added
03/31/2021
Modified
08/17/2022

Description

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting 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-10d2bb2e6b1d.

Solution(s)

  • debian-upgrade-linux

References

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