CVE-2022-41916

Read one byte past a buffer when normalizing Unicode

State: Published
Severity: 5.9 Medium
Published: Nov 15, 2022
Updated: Apr 23, 2025
Reserved: Sep 30, 2022

Description

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue.

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-193 Off-by-one Error

Affected Products

Product	Versions
heimdalheimdal	< 7.7.1Affected

References

https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx
DSA-5287vendor-advisory
[debian-lts-announce] 20221126 [SECURITY] [DLA 3206-1] heimdal security updatemailing-list
https://security.netapp.com/advisory/ntap-20230216-0008/
GLSA-202310-06vendor-advisory

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