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Credit:
The information has been provided by regenrecht.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-223/
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Vulnerable Systems:
* Mozilla Firefox
User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the code responsible for parsing SVG path segment objects. The function nsSVGPathSegList::ReplaceItem() does not account for deletion of the segment object list within a user defined DOMAttrModified EventListener. Code within nsSVGPathSegList::ReplaceItem() references the segment list without verifying that it was not deleted in the aforementioned callback. This can be abused to create a dangling reference which can be leveraged to execute arbitrary code within the context of the browser.
Patch Availability:
Mozilla has issued an update to correct this vulnerability. More details can be found at:
http://www.mozilla.org/security/announce/2011/mfsa2011-23.html
CVE Information:
CVE-2011-0083
Disclosure Timeline:
2011-04-04 - Vulnerability reported to vendor
2011-06-21 - Coordinated public release of advisory
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