CVE-2012-1016 Null dereference in n/a
Remote attackers can crash the Kerberos KDC via a crafted request due to a null pointer dereference in the PKINIT implementation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-1016?
CVE-2012-1016 is a medium-severity vulnerability in Mit Kerberos 5, published on 3 Mar 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-476
Which versions are affected by CVE-2012-1016?
It affects 1 product.
Products include Mit Kerberos 5.
How do I fix CVE-2012-1016?
Upgrade to a fixed version.
Is CVE-2012-1016 being exploited?
There is no known exploitation of CVE-2012-1016 in the wild and no public exploit code.
Other vulnerabilities in Mit Kerberos 5
Sources
Also known as DEBIAN-CVE-2012-1016, GHSA-677f-pp67-87jc.