CVE-2014-9421
Description
The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via malformed XDR data, as demonstrated by data sent to kadmind.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.12.1+dfsg-17 |
| sid | Fixed | 1.12.1+dfsg-17 |
| forky | Fixed | 1.12.1+dfsg-17 |
| bullseye | Fixed | 1.12.1+dfsg-17 |
| bookworm | Fixed | 1.12.1+dfsg-17 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| mit | kerberos_5 | 1.11 | |
| mit | kerberos_5 | 1.11.1 | |
| mit | kerberos_5 | 1.11.2 | |
| mit | kerberos_5 | 1.11.3 | |
| mit | kerberos_5 | 1.11.4 | |
| mit | kerberos_5 | 1.11.5 | |
| mit | kerberos_5 | 1.12 | |
| mit | kerberos_5 | 1.12.1 | |
| mit | kerberos_5 | 1.12.2 | |
| mit | kerberos_5 | 1.13 | |
References
- https://www.suse.com/security/cve/CVE-2014-9421.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html
- http://rhn.redhat.com/errata/RHSA-2015-0439.html
- http://rhn.redhat.com/errata/RHSA-2015-0794.html
- http://web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt
- http://www.debian.org/security/2015/dsa-3153
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069
- http://www.securityfocus.com/bid/72496
- http://www.ubuntu.com/usn/USN-2498-1
- https://github.com/krb5/krb5/commit/a197e92349a4aa2141b5dff12e9dd44c2a2166e3
- https://security-tracker.debian.org/tracker/CVE-2014-9421
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.