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Alpine Linux: CVE-2022-45142: Improper Validation of Integrity Check Value

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Alpine Linux: CVE-2022-45142: Improper Validation of Integrity Check Value

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:C/A:N)
Published
03/06/2023
Created
04/09/2024
Added
03/26/2024
Modified
04/09/2024

Description

The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding "!= 0" comparisons to the result of memcmp. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted.

Solution(s)

  • alpine-linux-upgrade-heimdal

References

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