CVE-2011-0285
Description
The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka krb5) 1.7 through 1.9 frees an invalid pointer, which allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a crafted request that triggers an error condition.
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.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
MIT Kerberos 5 - kadmind Change Password Feature Remote Code Execution
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.9.1+dfsg-1 |
| sid | Fixed | 1.9.1+dfsg-1 |
| forky | Fixed | 1.9.1+dfsg-1 |
| bullseye | Fixed | 1.9.1+dfsg-1 |
| bookworm | Fixed | 1.9.1+dfsg-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| mit | kerberos_5 | 1.7 | |
| mit | kerberos_5 | 1.7.1 | |
| mit | kerberos_5 | 1.8 | |
| mit | kerberos_5 | 1.8.1 | |
| mit | kerberos_5 | 1.8.2 | |
| mit | kerberos_5 | 1.8.3 | |
| mit | kerberos_5 | 1.9 | |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621726
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=6899
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058181.html
- http://osvdb.org/71789
- http://secunia.com/advisories/44125
- http://secunia.com/advisories/44181
- http://secunia.com/advisories/44196
- http://securityreason.com/securityalert/8200
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-004.txt
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:077
- http://www.redhat.com/support/errata/RHSA-2011-0447.html
- http://www.securityfocus.com/archive/1/517484/100/0/threaded
- http://www.securityfocus.com/bid/47310
- http://www.securitytracker.com/id?1025320
- http://www.vupen.com/english/advisories/2011/0936
- http://www.vupen.com/english/advisories/2011/0986
- http://www.vupen.com/english/advisories/2011/0997
- https://hermes.opensuse.org/messages/8086843
- https://security-tracker.debian.org/tracker/CVE-2011-0285
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.