Mozilla Firefox nsTreeSelection Dangling Pointer Remote Code Execution VulnerabilityZDI-10-131: July 20th, 2010
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This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of 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 implementation of XUL <tree> element's "selection" attribute. There is an integer overflow when calculating the bounds of a new selection range. When calling adjustSelection on this manged range both ranges are deleted leaving a dangling reference. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser.
Vendor ResponseMozilla Firefox has issued an update to correct this vulnerability. More details can be found at:
2010-06-09 - Vulnerability reported to vendor
2010-07-20 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: