Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-25604.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-25604
Upstream
Published
2023-03-06T23:15:11Z
Modified
2026-04-21T04:23:07.022365Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
CVE-2022-45142 affecting package heimdal for versions less than 7.7.1-2
Details

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.

References

Affected packages

Azure Linux:2 / heimdal

Package

Name
heimdal
Purl
pkg:rpm/azure-linux/heimdal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.7.1-2

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-25604.json"