Debian: 752-4 Urgent: Unzip Memory Leak and Denial of Service Risks

A buffer overflow has been discovered when handling long file
names contained in an archive. An attacker could create a
specially crafted archive which could cause unarj to crash or
possibly execute arbitrary code when being extracted by a victim.

CAN-2004-1027

A directory traversal vulnerability has been found so that an
attacker could create a specially crafted archive which would
create files in the parent directory when being extracted by a
victim. When used recursively, this vulnerability could be used
to overwrite critical system files and programs.

For the stable distribution (woody) these problems have been fixed in
version 2.43-3woody1.

For the unstable distribution (sid) these problems don't apply since
unstable/non-free does not contain the unarj package.

We recommend that you upgrade your unarj package.


Upgrade Instructions
- --------------------wget url
will fetch the file for you
dpkg -i file.deb
will instal...