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Security Bugfix for libpng

Knowledgebase

(Last modified: 05AUG2002)


solutions Security Bugfix for libpng SuSE Linux Maintenance Web (1a00d121529cb062b0f725f29906c47d)

Applies to

Product(s): SuSE Linux Database Server
SuSE Linux Admin-CD for Firewall
SuSE Linux Enterprise Server 7 for IBM zSeries
SuSE eMail Server III
SuSE Linux Enterprise Server 7 for PowerPC
SuSE Linux Enterprise Server 7 for IA32
SuSE Linux Enterprise Server 7 for IA64
SuSE Linux Enterprise Server 7 for S/390 and zSeries
SuSE Linux Enterprise Server for S/390
SuSE eMail Server 3.1
SuSE Linux Office Server
SuSE Firewall Adminhost VPN
SuSE Linux Connectivity Server

Package: libpng
Release: 20020805
Obsoletes: none

Indications

Everyone should install this patch.

Contraindications

None.

Problem description

A buffer overflow related to progressive image loading has been found in libpng, the library used for displaying PNG (Portable Network Graphics) format images. Since libpng is used by many applications that process images, the security implications of this bug are widespread so that this update should be installed.
It is yet unknown if the bug can be exploited to execute arbitrary commands as the user running the application that displays graphics. A possible exploit scenario consists of a specially crafted PNG image that would be downloaded by the victim with a web browser.

Solution

Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system by using this command:
rpm -Uvh libpng.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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