Executive Summary

Summary
Title New unalz packages fix arbitrary code execution
Informations
Name DSA-959 First vendor Publication 2006-01-30
Vendor Debian Last vendor Modification 2006-01-30
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
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Detail

Ulf Härnhammer from the Debian 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.

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

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

For the unstable distribution (sid) this problem will be fixed soon.

We recommend that you upgrade your unalz package.

Original Source

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 9

OpenVAS Exploits

Date Description
2008-01-17 Name : Debian Security Advisory DSA 959-1 (unalz)
File : nvt/deb_959_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
21160 unalz Archive Extraction Filename Overflow

A remote overflow exists in unalz. The application fails to perform proper bounds checking resulting in a buffer overflow. With a specially crafted 'ALZ' archive containing a file with an overly long filename, a remote attacker can cause arbitrary code execution resulting in a loss of integrity.

Nessus® Vulnerability Scanner

Date Description
2006-10-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-959.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:34:52
  • Multiple Updates