Intrusion Prevention

MIT.Kerberos.SPNEGO.Acceptor.acc_ctx_cont.DoS

Description

This indicates an attack attempt to exploit a Denial of Service vulnerability in MIT Kerberos.
The vulnerability is due to a NULL pointer dereference error when vulnerable module handles an invalid token inside SPNEGO related packets. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system by sending an empty token during negotiation process.

Affected Products

MIT Kerberos prior to 5 1.12.2

Impact

Denial of Service: Remote attackers can crash vulnerable systems or services

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b

CVE References

CVE-2014-4344