VIR Vulnerability Intelligence Relay

CVE-2010-1320

medium
Published 2010-04-22 · Modified 2026-04-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
5.0

Description

Double free vulnerability in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7.x and 1.8.x before 1.8.2 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a request associated with (1) renewal or (2) validation.

Predictions

Exploit likelihood
20%
Patch ETA
—

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 with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-33855 remote linux verified
Joel Johnson · 2010-04-20

MIT Kerberos 5 - 'src/kdc/do_tgs_req.c' Ticket Renewal Double-Free Memory Corruption

Source code queued for fetch — refresh in a moment.

OS impact
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 1.8.1+dfsg-2
sid Fixed 1.8.1+dfsg-2
forky Fixed 1.8.1+dfsg-2
bullseye Fixed 1.8.1+dfsg-2
bookworm Fixed 1.8.1+dfsg-2

Application impact
VendorProductVersionsFixed
mitkerberos_51.7
mitkerberos_51.7.1
mitkerberos_51.8
mitkerberos_51.8.1

References

CWEs

CWE-399

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.