MGASA-2023-0098 - Updated heimdal packages fix security vulnerability

Publication date: 18 Mar 2023
URL: https://advisories.mageia.org/MGASA-2023-0098.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2022-45142

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 a logic inversion sneaked in
causing the validation of message integrity codes in gssapi/arcfour to be
inverted. (CVE-2022-45142)

References:
- https://bugs.mageia.org/show_bug.cgi?id=31530
- https://www.openwall.com/lists/oss-security/2023/02/08/1
- https://www.debian.org/security/2023/dsa-5344
- https://ubuntu.com/security/notices/USN-5849-1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45142

SRPMS:
- 8/core/heimdal-7.7.1-1.3.mga8

Mageia 2023-0098: heimdal security update

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

Summary

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 a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted. (CVE-2022-45142)

References

- https://bugs.mageia.org/show_bug.cgi?id=31530

- https://www.openwall.com/lists/oss-security/2023/02/08/1

- https://www.debian.org/security/2023/dsa-5344

- https://ubuntu.com/security/notices/USN-5849-1

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45142

Resolution

MGASA-2023-0098 - Updated heimdal packages fix security vulnerability

SRPMS

- 8/core/heimdal-7.7.1-1.3.mga8

Severity
Publication date: 18 Mar 2023
URL: https://advisories.mageia.org/MGASA-2023-0098.html
Type: security
CVE: CVE-2022-45142

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