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Vulnerability Note VU#190366

Gaim contains a buffer overflow vulnerability in the gaim_quotedp_decode() function

Overview

There is a buffer overflow vulnerability in the Gaim gaim_quotedp_decode() function, which could cause a pointer to reference memory beyond the terminating null byte.

I. Description

Gaim is a multi-protocol instant messenger available for a number of operating systems. It includes a feature that requires Gaim to decode MIME-encoded data. There is a buffer overflow vulnerability in the gaim_quotedp_decode() function. This function fails to properly allocate memory for quoted printable strings, which could result in a pointer referencing a memory location beyond the terminating null byte.

II. Impact

An unauthenticated, remote attacker may cause a denial of service or potentially execute code of the attacker's choice.

III. Solution

Upgrade

Upgrade to Gaim version 0.76 or later.

Apply a patch
The maintainers of Gaim have supplied a patch to address this vulnerability.

Systems Affected

VendorStatusDate NotifiedDate Updated
GaimVulnerable30-Apr-2004

References


http://security.e-matters.de/advisories/012004.html
http://gaim.sourceforge.net/gaim-0.75.patch
http://www.debian.org/security/2004/dsa-434
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000813
http://www.secunia.com/advisories/10705/

Credit

This vulnerability was publicly reported by Stefan Esser of e-matters.

This document was written by Damon Morda.

Other Information

Date Public:2004-01-26
Date First Published:2004-04-30
Date Last Updated:2004-05-06
CERT Advisory: 
CVE-ID(s):CAN-2004-0005
NVD-ID(s):CAN-2004-0005
US-CERT Technical Alerts: 
Metric:7.87
Document Revision:19

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