Bug 717084 (CVE-2011-2501) - CVE-2011-2501 libpng: regression of CVE-2004-0421 in 1.2.23+
Summary: CVE-2011-2501 libpng: regression of CVE-2004-0421 in 1.2.23+
Alias: CVE-2011-2501
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 717509 717510 717511 717512 717513 721305 721306
Blocks: 717086
TreeView+ depends on / blocked
Reported: 2011-06-27 22:34 UTC by Vincent Danen
Modified: 2019-09-29 12:45 UTC (History)
3 users (show)

Fixed In Version: libpng 1.4.8beta04
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-07-18 08:58:33 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:1105 0 normal SHIPPED_LIVE Moderate: libpng security update 2011-07-28 18:22:47 UTC

Description Vincent Danen 2011-06-27 22:34:45 UTC
It was reported [1] that the fix for CVE-2004-0421 in libpng was inadvertently reverted during the 1.2.23 development cycle.  The original flaw could be used to cause a denial of service via a carefully-crafted PNG image.

This would affect all versions of libpng >=1.2.23, including 1.4.x and 1.5.x.

[1] http://sourceforge.net/mailarchive/forum.php?thread_name=BANLkTikrnU6FJNQYFvwmt78hwpgKPVRd1Q%40mail.gmail.com&forum_name=png-mng-implement

Comment 4 Huzaifa S. Sidhpurwala 2011-06-29 03:44:56 UTC
This has been assigned CVE-2011-2501:

Comment 5 Huzaifa S. Sidhpurwala 2011-06-29 03:57:52 UTC
Created libpng tracking bugs for this issue

Affects: fedora-all [bug 717509]

Comment 6 Huzaifa S. Sidhpurwala 2011-06-29 03:57:56 UTC
Created libpng10 tracking bugs for this issue

Affects: fedora-all [bug 717512]
Affects: epel-6 [bug 717513]

Comment 7 Huzaifa S. Sidhpurwala 2011-06-29 03:58:00 UTC
Created mingw32-libpng tracking bugs for this issue

Affects: fedora-all [bug 717510]
Affects: epel-5 [bug 717511]

Comment 8 Tom Lane 2011-07-14 16:51:08 UTC
Just for the record, I'm planning to handle this and the other current libpng bugs, in RHEL6, by rebasing from libpng 1.2.44 to 1.2.46.  I've diffed the tarballs and there is essentially no difference except version numbers and the security fixes we want.  Indeed, the entire reason why upstream is still maintaining 1.2.x is to provide security fixes, so it would be a bit discourteous to them to not use their tarballs ...

RHEL5 and back probably can't be handled that way, unfortunately.

Comment 12 errata-xmlrpc 2011-07-28 18:22:52 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:1105 https://rhn.redhat.com/errata/RHSA-2011-1105.html

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