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Vulnerabilities / CVE-2022-44640

critical

CVE-2022-44640

Heimdal before 7.7.1 allows remote attackers to execute arbitrary code ...

Published Modified CWE 415
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, Azure Linux, CBL-Mariner, Photon OS. Rated lower by Ubuntu (medium).

Description

Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).

Affected packages and fixed versions

SourcePackageFixed in
Azure Linux 3.0samba0:4.18.3-1.azl3
CBL-Mariner 1.0heimdal0:7.7.1-1.cm1
Photon OS 3.0samba-client4.17.8-1.ph3
alpine 3.14heimdal7.7.1-r0
alpine 3.15heimdal7.7.1-r0
alpine 3.16heimdal7.7.1-r0
alpine 3.17heimdal7.7.1-r0
alpine 3.18heimdal7.7.1-r0
alpine 3.19heimdal7.7.1-r0
alpine 3.20heimdal7.7.1-r0
alpine 3.21heimdal7.7.1-r0
alpine 3.22heimdal7.7.1-r0
Show all 44 entries from 35 sources
SourcePackageFixed in
Azure Linux 3.0samba0:4.18.3-1.azl3
CBL-Mariner 1.0heimdal0:7.7.1-1.cm1
Photon OS 3.0samba-client4.17.8-1.ph3
alpine 3.14heimdal7.7.1-r0
alpine 3.15heimdal7.7.1-r0
alpine 3.16heimdal7.7.1-r0
alpine 3.17heimdal7.7.1-r0
alpine 3.18heimdal7.7.1-r0
alpine 3.19heimdal7.7.1-r0
alpine 3.20heimdal7.7.1-r0
alpine 3.21heimdal7.7.1-r0
alpine 3.22heimdal7.7.1-r0
alpine 3.23heimdal7.7.1-r0
alpine 3.24heimdal7.7.1-r0
alpine edgeheimdal7.7.1-r0
debian 10heimdal7.5.0+dfsg-3+deb10u1
debian 10sambano fix listed
debian 11heimdal7.7.0+dfsg-2+deb11u2
debian 11sambano fix listed
debian 12heimdal7.8.git20221115.a6cf945+dfsg-1
debian 12samba2:4.17.4+dfsg-1
debian 13heimdal7.8.git20221115.a6cf945+dfsg-1
debian 13samba2:4.17.4+dfsg-1
debian 14heimdal7.8.git20221115.a6cf945+dfsg-1
debian 14samba2:4.17.4+dfsg-1
echoheimdal7.8.git20221115.a6cf945+dfsg-1
echosamba2:4.17.4+dfsg-1
rapidfort ubuntu 20.04rf-samba2:4.15.13+dfsg-0ubuntu0.20.04.1
rapidfort ubuntu 20.04samba2:4.15.13+dfsg-0ubuntu0.20.04.1, 2:4.15.13+dfsg-0ubuntu1
rapidfort ubuntu 22.04rf-samba2:4.15.13+dfsg-0ubuntu0.20.04.1
rapidfort ubuntu 22.04samba2:4.15.13+dfsg-0ubuntu0.20.04.1, 2:4.15.13+dfsg-0ubuntu1
rapidfort ubuntu 24.04rf-samba2:4.15.13+dfsg-0ubuntu0.20.04.1
rapidfort ubuntu 24.04samba2:4.15.13+dfsg-0ubuntu0.20.04.1, 2:4.15.13+dfsg-0ubuntu1
root.io debian 12rootio-samba2:4.17.4+dfsg-1
ubuntu 14.04-ESMheimdal1.6~git20131207+dfsg-1ubuntu1.2+esm3
ubuntu 16.04-ESMheimdal1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3
ubuntu 18.04heimdal7.5.0+dfsg-1ubuntu0.3
ubuntu 18.04-ESMheimdal7.5.0+dfsg-1ubuntu0.3
ubuntu 20.04heimdal7.7.0+dfsg-1ubuntu1.3
ubuntu 20.04-ESMheimdal7.7.0+dfsg-1ubuntu1.3
ubuntu 22.04heimdalno fix listed
ubuntu 24.04heimdalno fix listed
ubuntu 26.04heimdalno fix listed
ubuntu 26.10heimdalno fix listed

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.