Is CVE-2022-41916 in the CISA KEV catalog?

No. CVE-2022-41916 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-41916?

CVE-2022-41916 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2022-41916?

CVE-2022-41916 has an EPSS score of 0.89% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-41916?

Upgrade heimdal on debian 11 to 7.7.0+dfsg-2+deb11u2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2022-41916

MEDIUM

5.9

CVSS v3

NVD

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.

CWE-193

How to fix

Remediation Available

heimdalDebian

Fixed in:7.7.0+dfsg-2+deb11u2CVE-2022-41916

Fixed in:7.8.git20221115.a6cf945+dfsg-1CVE-2022-41916

heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm2USN-5766-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2USN-5766-1

Fixed in:7.5.0+dfsg-1ubuntu0.2USN-5766-1

Fixed in:7.7.0+dfsg-1ubuntu1.2USN-5766-1

libwind0-heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm2USN-5766-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2USN-5766-1

Fixed in:7.5.0+dfsg-1ubuntu0.2USN-5766-1

Fixed in:7.7.0+dfsg-1ubuntu1.2USN-5766-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.89%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Third-Party Advisory3

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.