CVE-2022-45142

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 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.

Affected Software

Weaknesses

• CWE-354: CWE-354

ADP Enrichment

CVE Program Container

Additional References

• https://www.openwall.com/lists/oss-security/2023/02/08/1
• https://security.gentoo.org/glsa/202310-06

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://www.openwall.com/lists/oss-security/2023/02/08/1
• https://security.gentoo.org/glsa/202310-06

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