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Debian DSA-959-1 : unalz - buffer overflow

high Nessus Plugin ID 22825

Synopsis

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

Description

Ulf Harnhammar from the Debian Security Audit Project discovered that unalz, a decompressor for ALZ archives, performs insufficient bounds checking when parsing file names. This can lead to arbitrary code execution if an attacker provides a crafted ALZ archive.

Solution

Upgrade the unalz package.

The old stable distribution (woody) does not contain unalz.

For the stable distribution (sarge) this problem has been fixed in version 0.30.1

See Also

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340842

http://www.debian.org/security/2006/dsa-959

Plugin Details

Severity: High

ID: 22825

File Name: debian_DSA-959.nasl

Version: 1.17

Type: local

Agent: unix

Published: 10/14/2006

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:unalz, cpe:/o:debian:debian_linux:3.1

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

Patch Publication Date: 1/30/2006

Vulnerability Publication Date: 11/26/2005

Reference Information

CVE: CVE-2005-3862

DSA: 959