libwmf -- embedded GD library Use-After-Free vulnerability

Secunia reports:

A vulnerability has been reported in libwmf, which can be exploited by malicious people to cause a DoS (Denial of Service) or compromise an application using the library.

The vulnerability is caused due to a use-after-free error within the embedded GD library, which can be exploited to cause a crash or potentially to execute arbitrary code via a specially crafted WMF file.

[source]