What’s Vulnerable › Vulnerabilities

CVE-2014-1500

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-03-19 · updated 2026-06-17
• Weakness: CWE-400

Description

Mozilla Firefox before 28.0 and SeaMonkey before 2.25 allow remote attackers to cause a denial of service (resource consumption and application hang) via onbeforeunload events that trigger background JavaScript execution.

Affected products

• Mozilla Firefox: before 28.0 — fixed in 28.0
• Mozilla Seamonkey: before 2.25 — fixed in 2.25
• Opensuse: 13.1
• Opensuse Project Opensuse: 11.4, 12.3
• Oracle Corporation Solaris Operating System: 11.3
• SUSE Linux Enterprise Server 15 SP1: 11-sp3
• SUSE Linux Enterprise Server: 11-sp3
• SUSE Linux Enterprise Software Development Kit: 11-sp3

How to fix

Upgrade to a fixed version: Mozilla Firefox 28.0; Mozilla Seamonkey 2.25. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00016.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00022.html
• http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00016.html
• http://www.mozilla.org/security/announce/2014/mfsa2014-20.html
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=956524
• https://security.gentoo.org/glsa/201504-01
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00016.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00022.html
• http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00016.html

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