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Debian Security Advisory DSA-3213-1 security@debian.org
http://www.debian.org/security/ Salvatore Bonaccorso
April 06, 2015 http://www.debian.org/security/faq
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Package : arj
CVE ID : CVE-2015-0556 CVE-2015-0557 CVE-2015-2782
Debian Bug : 774015 774434 774435
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:
CVE-2015-0556
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.
CVE-2015-0557
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.
CVE-2015-2782
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.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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