MIT krb5 Security Advisory 2009-002 – An ASN.1 decoder can free an uninitialized pointer when decoding an invalid encoding. This can cause a Kerberos application to crash, or, under theoretically possible but unlikely circumstances, execute arbitrary malicious code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/76431/MITKRB5-SA-2009-002.txt
Source: https://packetstormsecurity.com/files/76431/MIT-krb5-Security-Advisory-2009-002.html