Bug 487364 (CVE-2009-0749)

Summary:

CVE-2009-0749 optipng: memory re-allocation flaw in GIF reader

Product:

[Other] Security Response

Reporter:

Tomas Hoger <thoger>

Component:

vulnerability

Assignee:

Red Hat Product Security <security-response-team>

Status:

CLOSED ERRATA

QA Contact:

Severity:

high

Docs Contact:

Priority:

medium

Version:

unspecified

CC:

opensource, ville.skytta

Target Milestone:

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Keywords:

Security

Target Release:

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Hardware:

All

OS:

Linux

Whiteboard:

Fixed In Version:

Doc Type:

Bug Fix

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2009-03-02 19:49:17 UTC

Type:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Attachments:

Description	Flags
Local copy of the upstream patch	none

Description Tomas Hoger 2009-02-25 16:44:19 UTC

Quoting security updates section of the upstream page:
  All current OptiPNG versions are known to be vulnerable to memory
  reallocation attacks, due to a bug in the GIF image reader. (Many
  thanks to Roy Tam for the report, as well as the fix.) 

  http://optipng.sourceforge.net/

Upstream patch to be included in future upstream versions:
http://prdownloads.sourceforge.net/optipng/optipng-0.6.2.1.diff?download

Comment 1 Tomas Hoger 2009-02-25 16:45:15 UTC

Created attachment 333177 [details]
Local copy of the upstream patch

Taken from:
http://prdownloads.sourceforge.net/optipng/optipng-0.6.2.1.diff?download

Comment 2 Fedora Update System 2009-02-25 18:06:26 UTC

optipng-0.6.2.1-1.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/optipng-0.6.2.1-1.fc10

Comment 3 Fedora Update System 2009-02-25 18:06:31 UTC

optipng-0.6.2.1-1.fc9 has been submitted as an update for Fedora 9.
http://admin.fedoraproject.org/updates/optipng-0.6.2.1-1.fc9

Comment 4 Fedora Update System 2009-02-26 15:31:54 UTC

optipng-0.6.2.1-1.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2009-02-26 15:32:05 UTC

optipng-0.6.2.1-1.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Tomas Hoger 2009-03-02 19:49:17 UTC

CVE-2009-0749:

Use-after-free vulnerability in the GIFReadNextExtension function in
lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows
context-dependent attackers to cause a denial of service (application
crash) via a crafted GIF image that causes the realloc function to
return a new pointer, which triggers memory corruption when the old
pointer is accessed.