Advisory Details

March 11th, 2016

Mozilla Firefox nsHtml5TreeBuilder Array Indexing Remote Code Execution Vulnerability

CVE ID	CVE-2016-1960
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Mozilla
AFFECTED PRODUCTS	Firefox
VULNERABILITY DETAILS	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 handling of HTML5 end tags. The issue lies in the failure to check for an index becoming negative, allowing for out-of-bounds indexing. An attacker can leverage this vulnerability to execute code within the context of the current process.
ADDITIONAL DETAILS	Mozilla has issued an update to correct this vulnerability. More details can be found at: https://www.mozilla.org/en-US/security/advisories/mfsa2016-23/
DISCLOSURE TIMELINE	2016-02-04 - Vulnerability reported to vendor 2016-03-11 - Coordinated public release of advisory
CREDIT	ca0nguyen

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