Debian Security Advisory
DSA-3213-1 arj -- security update
- Date Reported:
- 06 Apr 2015
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 774015, Bug 774434, Bug 774435.
In Mitre's CVE dictionary: CVE-2015-0556, CVE-2015-0557, CVE-2015-2782.
- More information:
Multiple vulnerabilities have been discovered in arj, an open source version of the arj archiver. The Common Vulnerabilities and Exposures project identifies the following problems:
Jakub Wilk discovered that arj follows symlinks created during unpacking of an arj archive. A remote attacker could use this flaw to perform a directory traversal attack if a user or automated system were tricked into processing a specially crafted arj archive.
Jakub Wilk discovered that arj does not sufficiently protect from directory traversal while unpacking an arj archive containing file paths with multiple leading slashes. A remote attacker could use this flaw to write to arbitrary files if a user or automated system were tricked into processing a specially crafted arj archive.
Jakub Wilk and Guillem Jover discovered a buffer overflow vulnerability in arj. A remote attacker could use this flaw to cause an application crash or, possibly, execute arbitrary code with the privileges of the user running arj.
For the stable distribution (wheezy), these problems have been fixed in version 3.10.22-10+deb7u1.
For the upcoming stable distribution (jessie), these problems have been fixed in version 3.10.22-13.
For the unstable distribution (sid), these problems have been fixed in version 3.10.22-13.
We recommend that you upgrade your arj packages.