Bug 81157 – Buffer overflow issue in libpng

Bug 81157 - Buffer overflow issue in libpng

Summary:	Buffer overflow issue in libpng

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 2.1
Classification:	Red Hat
Component:	libpng (Show other bugs)
Sub Component:
Version:	2.1
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Jonathan Blandford
QA Contact:
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Keywords:	Security

Depends On:
Blocks:
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Reported:	2003-01-06 06:01 EST by Mark J. Cox (Product Security)
Modified:	2013-04-02 00:17 EDT (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
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Last Closed:	2003-01-29 10:34:58 EST
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Description Mark J. Cox (Product Security) 2003-01-06 06:01:59 EST

Unpatched versions of libpng 1.2.1 and earlier do not correctly calculate
offsets, which leads to a buffer overflow and the possibility of arbitrary
code execution.  This could be exploited by an attacker creating a
carefully crafted PNG file which could execute arbitrary code when the
victim views it.

Packages within Red Hat Linux, such as Mozilla, make use of the shared
libpng library. Therefore, all users are advised to upgrade to the errata
packages.

We're working on an erratum which will contain a backported fix for this issue
to libpng 1.0.14

Comment 1 Mark J. Cox (Product Security) 2003-01-29 10:34:58 EST

An errata has been issued which should help the problem described in this bug report. 
This report is therefore being closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, please follow the link below. You may reopen 
this bug report if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2003-007.html

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