gnupg -- memory corruption vulnerability

Secunia reports:

A vulnerability has been reported in GnuPG, which can potentially be exploited to compromise a vulnerable system.

The vulnerability is caused due to an error when importing keys with duplicated IDs. This can be exploited to cause a memory corruption when importing keys via --refresh-keys or --import.

Successful exploitation potentially allows execution of arbitrary code, but has not been proven yet.

[source]