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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox SVG Processing Flaw Lets Remote Users Bypass Same-Origin Policy and Execute Arbitrary Scripts with Elevated Privileges
SecurityTracker Alert ID:  1031959
SecurityTracker URL:  http://securitytracker.com/id/1031959
CVE Reference:   CVE-2015-0818   (Links to External Site)
Date:  Mar 22 2015
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 36.0.4
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can cause arbitrary scripts to be executed on the target user's system with elevated privileges.

A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a flaw in processing SVG format content navigation and bypass same-origin policy to execute arbitrary scripts with elevated privileges.

Mariusz Mlynski reported this vulnerability via the HP Zero Day Initiative Pwn2Own contest

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (36.0.4, ESR 31.5.3).

[Editor's note: Version 36.0.3 and ESR 31.5.2 included an incomplete fix for this vulnerability.]

The vendor's advisory is available at:

https://www.mozilla.org/en-US/security/advisories/mfsa2015-28/

Vendor URL:  www.mozilla.org/en-US/security/advisories/mfsa2015-28/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 24 2015 (Red Hat Issues Fix) Mozilla Firefox SVG Processing Flaw Lets Remote Users Bypass Same-Origin Policy and Execute Arbitrary Scripts with Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 5, 6, and 7.



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