CVE-2012-1016

Name: CVE-2012-1016
Creator: NVD / NIST
Published: 2013-03-05T04:54:02.927+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.58%

Last modified Jun 16, 2026

CVE-2012-1016 is a vulnerability of currently unknown severity. The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.. EPSS estimates a 2.58% chance of exploitation in the next 30 days.

Description

The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.

Metrics

EPSS Probability

2.58%

83.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Mit	Kerberos 5	< 1.10.4

References

http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527Vendor Advisory
http://secunia.com/advisories/55040Third Party Advisory
http://web.mit.edu/kerberos/www/krb5-1.10/Release Notes, Vendor Advisory
https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52cPatch, Third Party Advisory
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527Vendor Advisory
http://secunia.com/advisories/55040Third Party Advisory
http://web.mit.edu/kerberos/www/krb5-1.10/Release Notes, Vendor Advisory
https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52cPatch, Third Party Advisory

Timeline

Published: Mar 5, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-1016?

How severe is CVE-2012-1016?

Severity scoring for CVE-2012-1016 is pending analysis. The EPSS model estimates a 2.58% probability of exploitation in the next 30 days.

How do I fix CVE-2012-1016?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-1016?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST