Bug 1023840 - (CVE-2013-5596) CVE-2013-5596 Mozilla: Writing to cycle collected object during image decoding (MFSA 2013-97)
CVE-2013-5596 Mozilla: Writing to cycle collected object during image decodin...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
urgent Severity urgent
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Assigned To: Red Hat Product Security
impact=critical,public=20131029,repor...
: Security
Depends On:
Blocks: 1015366
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Reported: 2013-10-28 00:35 EDT by Huzaifa S. Sidhpurwala
Modified: 2013-10-29 13:12 EDT (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2013-10-28 01:19:19 EDT
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Description Huzaifa S. Sidhpurwala 2013-10-28 00:35:40 EDT
Mozilla community member Ezra Pool reported a potentially exploitable crash on extremely large pages. This was caused when a cycle collected image object was released on the wrong thread during decoding, creating a race condition.

In general this flaw cannot be exploited through email in the Thunderbird and Seamonkey products because scripting is disabled, but is potentially a risk in browser or browser-like contexts.


External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-97.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Ezra Pool 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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