Bug 81157 - Buffer overflow issue in libpng
Summary: Buffer overflow issue in libpng
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: libpng
Version: 2.1
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Jonathan Blandford
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2003-01-06 11:01 UTC by Mark J. Cox
Modified: 2013-04-02 04:17 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2003-01-29 15:34:58 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2003:007 0 high SHIPPED_LIVE Important: libpng security update 2003-01-06 05:00:00 UTC

Description Mark J. Cox 2003-01-06 11:01:59 UTC 
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 2003-01-29 15:34:58 UTC 
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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