Bug 851916 - (CVE-2012-3965) CVE-2012-3965 Mozilla: Escalation of privilege through about:newtab (MFSA 2012-60)
CVE-2012-3965 Mozilla: Escalation of privilege through about:newtab (MFSA 201...
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=20120828,repor...
: Security
Depends On:
Blocks: 847589
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Reported: 2012-08-26 23:39 EDT by Huzaifa S. Sidhpurwala
Modified: 2012-08-28 23:05 EDT (History)
4 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-08-26 23:39:50 EDT
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Description Huzaifa S. Sidhpurwala 2012-08-26 23:39:06 EDT
Security researcher Mariusz Mlynski reported that when a page opens a new tab, a subsequent window can then be opened that can be navigated to about:newtab, a chrome privileged page. Once about:newtab is loaded, the special context can potentially be used to escalate privilege, allowing for arbitrary code execution on the local system in a maliciously crafted attack. 

Reference:
http://www.mozilla.org/security/announce/2012/mfsa2012-60.html

Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Security researcher Mariusz Mlynski as the original reporter of this flaw.

Statement:

Not Vulnerable. 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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