Synopsis :

The remote Debian host is missing a security-related update.

Description :

Several integer overflows have been discovered by its upstream
developers in libpng, a commonly used library to display PNG graphics.
They could be exploited to cause arbitrary code to be executed when a
specially crafted PNG image is processed.

See also :

http://www.debian.org/security/2004/dsa-571

Solution :

Upgrade the libpng3 packages.

For the stable distribution (woody) these problems have been fixed in
version 1.2.1-1.1.woody.9.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)