CVE-2022-41916

HIGH
Published Nov 15, 20223y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Nov 15, 2022 3y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-193

Affected Products 3

VendorProductVersionRange
heimdal_projectheimdal* <7.7.1
debiandebian_linux10.0any
debiandebian_linux11.0any

References 5

  • github.com https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html
    Mailing ListThird Party Advisory
  • security.gentoo.org https://security.gentoo.org/glsa/202310-06
  • security.netapp.com https://security.netapp.com/advisory/ntap-20230216-0008/
  • debian.org https://www.debian.org/security/2022/dsa-5287
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.