CVE-2022-45142 - CVE House
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Status published Unknown CVE-2022-45142

The fix for CVE-2022-3437 included changing memcmp to be constant...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Samba
Vulnerable Versions:
unknown

Timeline

Official Publish: March 6th, 2023
Last Modified: March 6th, 2025
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-354

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.