Heap-based Buffer Over-read Vulnerability in nsHtml5TreeBuilder::resetTheInsertionMode Function

CVE-2013-1720 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:P/A:P

The nsHtml5TreeBuilder::resetTheInsertionMode function in the HTML5 Tree Builder in Mozilla Firefox before 24.0, Thunderbird before 24.0, and SeaMonkey before 2.21 does not properly maintain the state of the insertion-mode stack for template elements, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer over-read) by triggering use of this stack in its empty state.

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