Bug 720612 - (CVE-2011-2692) CVE-2011-2692 libpng: Invalid read when handling empty sCAL chunks
CVE-2011-2692 libpng: Invalid read when handling empty sCAL chunks
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
public=20110707,reported=20110707,sou...
: Security
Depends On: 721302 721303 721304 721305 721306 721307 721308 721309 721310 721311 721312 802166
Blocks: 717086
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Reported: 2011-07-12 05:22 EDT by Huzaifa S. Sidhpurwala
Modified: 2015-11-24 09:39 EST (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-07-18 05:00:24 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Huzaifa S. Sidhpurwala 2011-07-12 05:22:48 EDT
It was found that libpng read uninitialized memory when it encountered a
sCAL chunk that is empty, and improperly handles a sCAL chunk that lacks
the terminating zero between the two strings that it conveys.

This was fixed in libpng-1.5.4, libpng-1.4.8, libpng-1.2.45,
and libpng-1.0.55.

Patch:
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
Comment 1 Huzaifa S. Sidhpurwala 2011-07-13 00:42:49 EDT
This has been assigned CVE-2011-2692
Comment 2 Vincent Danen 2011-07-13 13:33:53 EDT
This is also CERT VU#819894:

http://www.kb.cert.org/vuls/id/819894
Comment 5 Huzaifa S. Sidhpurwala 2011-07-14 05:08:37 EDT
Created libpng tracking bugs for this issue

Affects: fedora-all [bug 721307]
Comment 6 Huzaifa S. Sidhpurwala 2011-07-14 05:08:41 EDT
Created libpng10 tracking bugs for this issue

Affects: fedora-all [bug 721309]
Affects: epel-6 [bug 721310]
Comment 7 Huzaifa S. Sidhpurwala 2011-07-14 05:08:45 EDT
Created mingw32-libpng tracking bugs for this issue

Affects: epel-5 [bug 721312]
Affects: fedora-all [bug 721311]
Comment 10 errata-xmlrpc 2011-07-28 14:11:56 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:1104 https://rhn.redhat.com/errata/RHSA-2011-1104.html
Comment 11 errata-xmlrpc 2011-07-28 14:12:12 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2011:1103 https://rhn.redhat.com/errata/RHSA-2011-1103.html
Comment 12 errata-xmlrpc 2011-07-28 14:22:57 EDT
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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