Bug 865283 (CVE-2012-4192) - CVE-2012-4192 Mozilla: defaultValue security checks not applied (firefox-16) (MFSA 2012-89)
Summary: CVE-2012-4192 Mozilla: defaultValue security checks not applied (firefox-16) ...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2012-4192
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 865235
TreeView+ depends on / blocked
 
Reported: 2012-10-11 06:34 UTC by Huzaifa S. Sidhpurwala
Modified: 2023-05-11 20:03 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-10-11 06:35:05 UTC
Embargoed:

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Description Huzaifa S. Sidhpurwala 2012-10-11 06:34:31 UTC 
Mozilla security researcher moz_bug_r_a4 reported a regression where security wrappers are unwrapped without doing a security check in defaultValue(). This can allow for improper access access to the Location object and the potential for arbitrary code execution.

Security researcher Gareth Heyes also blogged about a Firefox 16 only symptom that is fixed in the updated versions.

This issue only affects Firefox 16.0 and does not affect the ESR version.

External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-89.html


Acknowledgements:

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