Bug 877624 – CVE-2012-4204 Mozilla: Memory corruption in str_unescape (MFSA 2012-96)

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Bug 877624 - (CVE-2012-4204) CVE-2012-4204 Mozilla: Memory corruption in str_unescape (MFSA 2012-96)

Summary:	CVE-2012-4204 Mozilla: Memory corruption in str_unescape (MFSA 2012-96)

Status:	CLOSED NOTABUG

Aliases:	CVE-2012-4204

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

Priority	urgent Severity urgent
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=critical,public=20121120,repor...
Keywords:	Security

Depends On:
Blocks:	873088
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Reported:	2012-11-17 06:30 EST by Huzaifa S. Sidhpurwala
Modified:	2012-11-20 15:46 EST (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2012-11-17 06:31:21 EST
Type:	---
Regression:	---
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Documentation:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Huzaifa S. Sidhpurwala 2012-11-17 06:30:15 EST

Security researcher Scott Bell of Security-Assessment.com used the Address Sanitizer tool to discover a memory corruption in str_unescape in the Javascript engine. This could potentially lead to arbitrary code execution.

In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.


External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-96.html


Acknowledgements:

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