Debian DSA-3213-1 : arj - security update

High Nessus Plugin ID 82595

Synopsis

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

Description

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.

Solution

Upgrade the arj packages.

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.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774015

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774434

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774435

https://security-tracker.debian.org/tracker/CVE-2015-0556

https://security-tracker.debian.org/tracker/CVE-2015-0557

https://security-tracker.debian.org/tracker/CVE-2015-2782

https://packages.debian.org/source/wheezy/arj

https://www.debian.org/security/2015/dsa-3213

Plugin Details

Severity: High

ID: 82595

File Name: debian_DSA-3213.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2015/04/07

Updated: 2018/11/28

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:arj, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/04/06

Reference Information

CVE: CVE-2015-0556, CVE-2015-0557, CVE-2015-2782

BID: 71860, 71895, 73413

DSA: 3213