CVE-2022-41916

Read one byte past a buffer when normalizing Unicode

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.22%
Vendor Advisory debian.org Vendor Advisory gentoo.org
Affected: heimdal heimdal
Published at:
Updated at:

References

Link Tags
https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx third party advisory
https://www.debian.org/security/2022/dsa-5287 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html third party advisory mailing list
https://security.netapp.com/advisory/ntap-20230216-0008/
https://security.gentoo.org/glsa/202310-06 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-41916?
CVE-2022-41916 has been scored as a medium severity vulnerability.
How to fix CVE-2022-41916?
To fix CVE-2022-41916, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-41916 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-41916 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-41916?
CVE-2022-41916 affects heimdal heimdal.
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