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Debian DSA-730-1 : bzip2 - race condition

low Nessus Plugin ID 18517

Synopsis

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

Description

Imran Ghory discovered a race condition in bzip2, a high-quality block-sorting file compressor and decompressor. When decompressing a file in a directory an attacker has access to, bunzip2 could be tricked to set the file permissions to a different file the user has permissions to.

Solution

Upgrade the bzip2 packages.

For the stable distribution (woody) this problem has been fixed in version 1.0.2-1.woody2.

See Also

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=303300

http://www.debian.org/security/2005/dsa-730

Plugin Details

Severity: Low

ID: 18517

File Name: debian_DSA-730.nasl

Version: 1.16

Type: local

Agent: unix

Published: 6/17/2005

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.3

CVSS v2

Risk Factor: Low

Base Score: 3.7

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:3.0, p-cpe:/a:debian:debian_linux:bzip2

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

Patch Publication Date: 5/27/2005

Reference Information

CVE: CVE-2005-0953

DSA: 730