What’s Vulnerable › Vulnerabilities

CVE-2013-5616

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-12-11 · updated 2026-06-16
• Weakness: CWE-416

Description

Use-after-free vulnerability in the nsEventListenerManager::HandleEventSubType function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to mListeners event listeners.

Affected products

• Canonical Ubuntu Linux: 12.04, 12.10, 13.04, 13.10
• Fedoraproject Fedora: 18, 19, 20
• Mozilla Firefox: before 26.0; from 24.0 before 24.2 — fixed in 24.2, 26.0
• Mozilla Seamonkey: before 2.23 — fixed in 2.23
• Mozilla Thunderbird: before 24.2 — fixed in 24.2
• Opensuse: 12.2, 12.3, 13.1
• RedHat Enterprise Linux Desktop: 5.0, 6.0
• RedHat Enterprise Linux Eus: 6.5
• RedHat Enterprise Linux Server: 5.0, 6.0
• RedHat Enterprise Linux Server Aus: 6.5
• RedHat Enterprise Linux Server Eus: 6.5
• RedHat Enterprise Linux Server Tus: 6.5
• RedHat Enterprise Linux Workstation: 5.0, 6.0
• Suse Linux Enterprise Desktop: 11-sp3
• SUSE Linux Enterprise: 11-sp3
• Suse Linux Enterprise Software Development Kit: 11.0-sp3

How to fix

Upgrade to a fixed version: Mozilla Firefox 24.2, 26.0; Mozilla Seamonkey 2.23; Mozilla Thunderbird 24.2. Check the vendor advisory for mitigations.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html
• http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00010.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00085.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00086.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00087.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00119.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00120.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00121.html
• http://lists.opensuse.org/opensuse-updates/2014-01/msg00002.html

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