CVE-2022-41916
Published: 15 November 2022
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
heimdal Launchpad, Ubuntu, Debian |
bionic |
Released
(7.5.0+dfsg-1ubuntu0.2)
|
| focal |
Released
(7.7.0+dfsg-1ubuntu1.2)
|
|
| jammy |
Needed
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Ignored
(end of life, was needed)
|
|
| mantic |
Needed
|
|
| trusty |
Released
(1.6~git20131207+dfsg-1ubuntu1.2+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(7.7.1, 7.8, 7.8.git20221115.a6cf945+dfsg-1)
|
|
| xenial |
Released
(1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://github.com/heimdal/heimdal/commit/eb87af0c2d189c25294c7daf483a47b03af80c2c |
||
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |