vulnerability
Gentoo Linux: CVE-2022-45142: Heimdal: Multiple Vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:C/A:N) | Mar 6, 2023 | Oct 10, 2023 | Aug 13, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:C/A:N)
Published
Mar 6, 2023
Added
Oct 10, 2023
Modified
Aug 13, 2025
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
gentoo-linux-upgrade-app-crypt-heimdal
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