CVE-2016-1960
HighSummary
An integer underflow in the nsHtml5TreeBuilder class in the HTML5 string parser in Mozilla Firefox before version 45.0 and Firefox ESR 38.x before version 38.7 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) by mishandling end tags.
Risk Assessment
This vulnerability can lead to severe consequences, such as remote code execution or service disruption, posing a security threat to systems using the affected versions of the browser.
Recommendation
It is recommended to update Mozilla Firefox to the latest version to mitigate this vulnerability and reduce the risk of attacks.
Related vulnerabilities
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An unauthenticated remote attacker can perform an XSS attack on a logged-in backend user, allowing execution of multiple critical system actions such as shutting down the server or restoring an uploaded backup.
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The described vulnerability could allow an attacker to compromise a system. Technical details are not provided in the description.
Original NVD description (English source)
Integer underflow in the nsHtml5TreeBuilder class in the HTML5 string parser in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) by leveraging mishandling of end tags, as demonstrated by incorrect SVG processing, aka ZDI-CAN-3545.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

