gnats - format string vulnerability

Khan Shirani discovered a format string vulnerability in gnats, the
GNU problem report management system. This problem may be exploited
to execute arbitrary code.

For the stable distribution (woody) this problem has been fixed in
version 3.999.beta1+cvs20020303-2.

For the unstable distribution (sid) this problem has been fixed in
version 4.0-7.

We recommend that you upgrade your gnats package.