Debian 4.0: DSA 333-1 Severe: LibPNG Memory Corruption Vulnerability

debian

January 7, 2003

There is an integer overflow in the pdftops filter from the xpdf package that can be exploited to gain the privileges of the target user.

Topics Covered

security advisory critical debian integer overflow local escalation xpdf package

Summary

iDEFENSE discovered an integer overflow in the pdftops filter from the
xpdf package that can be exploited to gain the privileges of the
target user. This can lead to gaining privileged access to the 'lp'
user if thee pdftops program is part of the print filter.

For the current stable distribution (woody) this problem has been
fixed in version 1.00-3.1.

For the old stable distribution (potato) this problem has been
fixed in version 0.90-8.1.

For the unstable distribution (sid) this problem has been
fixed in version 2.01-2.

We recommend that you upgrade your xpdf package.

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 2.2 alias potato
...