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Debian DSA-652-1 : unarj - several vulnerabilities

critical Nessus Plugin ID 16236

Synopsis

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

Description

Several vulnerabilities have been discovered in unarj, a non-free ARJ unarchive utility. The Common Vulnerabilities and Exposures Project identifies the following vulnerabilities :

 - CAN-2004-0947 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.

Solution

Upgrade the unarj package.

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

See Also

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=281922

http://www.debian.org/security/2005/dsa-652

Plugin Details

Severity: Critical

ID: 16236

File Name: debian_DSA-652.nasl

Version: 1.18

Type: local

Agent: unix

Published: 1/25/2005

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:3.0, p-cpe:/a:debian:debian_linux:unarj

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

Patch Publication Date: 1/21/2005

Vulnerability Publication Date: 10/12/2004

Reference Information

CVE: CVE-2004-0947, CVE-2004-1027

DSA: 652