Bug 946936 – CVE-2013-0792 Mozilla: Memory corruption while rendering grayscale PNG images (MFSA 2013-39)

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Bug 946936 - (CVE-2013-0792) CVE-2013-0792 Mozilla: Memory corruption while rendering grayscale PNG images (MFSA 2013-39)

Summary:	CVE-2013-0792 Mozilla: Memory corruption while rendering grayscale PNG images...

Status:	CLOSED NOTABUG

Aliases:	CVE-2013-0792

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=moderate,public=20130402,repor...
Keywords:	Security

Depends On:
Blocks:	923151
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Reported:	2013-03-31 22:10 EDT by Huzaifa S. Sidhpurwala
Modified:	2013-04-03 05:25 EDT (History)
CC List:	1 user (show)

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Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
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Last Closed:	2013-03-31 23:27:53 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Huzaifa S. Sidhpurwala 2013-03-31 22:10:09 EDT

Mozilla community member Tobias Schula reported that if gfx.color_management.enablev4 preference is enabled manually in about:config, some grayscale PNG images will be rendered incorrectly and cause memory corruption during PNG decoding when certain color profiles are in use. A crafted PNG image could use this flaw to leak data through rendered images drawing from random memory. By default, this preference is not enabled.



External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-39.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Tobias Schula as the original reporter.

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5 and 6

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