Bug 877633 (CVE-2012-4210)

Summary: CVE-2012-4210 Mozilla: CSS and HTML injection through Style Inspector (MFSA 2012-104)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2013-01-16 16:51:26 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 873088    

Description Huzaifa S. Sidhpurwala 2012-11-17 12:02:49 UTC 
Security researcher Mariusz Mlynski reported that when a maliciously crafted stylesheet is inspected in the Style Inspector, HTML and CSS can run in a chrome privileged context without being properly sanitized first. This can lead to arbitrary code execution.


External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-104.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Mariusz Mlynski as the original reporter.
Comment 1 errata-xmlrpc 2012-11-20 22:12:27 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:1482 https://rhn.redhat.com/errata/RHSA-2012-1482.html