CVE-2022-45142 (heimdal) | allinfosecnews.com

March 6, 2023, 11:15 p.m. |

National Vulnerability Database web.nvd.nist.gov

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.

bug changing comparisons compiler cve fix integrity logic message patches result validation workaround

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