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CVE-2022-41916

Read one byte past a buffer when normalizing Unicode

Published: Nov 15, 2022Updated: Nov 21, 2024 Sources: CVE List NVDCWE-193
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.9%
Top 45.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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 Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-193

Affected Products

heimdalheimdal project
On-prem
Security Products / endpoint-av-edr
debian linuxdebian
On-premOS
Operating Systems / linux-distro
heimdalheimdal
On-prem
Security Products / endpoint-av-edr
heimdal projectcommercialSecurity Productsaka heimdal
debianoss-projectGBOperating Systemsaka debian gnu/linux
heimdalcommercialSecurity Productsaka heimdal security

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx
github.com
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html
lists.debian.org
https://security.gentoo.org/glsa/202310-06
security.gentoo.org
and 2 more references View all →

Timeline

Published
Nov 15, 2022
Last Updated
Nov 21, 2024

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