What’s Vulnerable › Vulnerabilities

CVE-2012-4194

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-10-29 · updated 2026-06-16
• Weakness: CWE-79

Description

Mozilla Firefox before 16.0.2, Firefox ESR 10.x before 10.0.10, Thunderbird before 16.0.2, Thunderbird ESR 10.x before 10.0.10, and SeaMonkey before 2.13.2 do not prevent use of the valueOf method to shadow the location object (aka window.location), which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via vectors involving a plugin.

Affected products

• Canonical Ubuntu Linux: 10.04, 11.04, 11.10, 12.04, 12.10
• Mozilla Firefox: before 16.0.2; from 10.0 before 10.0.10 — fixed in 10.0.10, 16.0.2
• Mozilla Seamonkey: before 2.13.2 — fixed in 2.13.2
• Mozilla Thunderbird: before 16.0.2 — fixed in 16.0.2
• Mozilla Thunderbird ESR: from 10.0 before 10.0.10 — fixed in 10.0.10
• Opensuse: 11.4, 12.1, 12.2
• RedHat Enterprise Linux Desktop: 5.0, 6.0
• RedHat Enterprise Linux Eus: 6.3
• RedHat Enterprise Linux Server: 6.0, 7.0
• RedHat Enterprise Linux Workstation: 5.0, 6.0
• SUSE Linux Enterprise Server 15 SP1: 10-sp4, 11-sp2
• SUSE Linux Enterprise Server: 10-sp4, 11-sp2
• SUSE Linux Enterprise Software Development Kit: 10-sp4, 11-sp2

How to fix

Upgrade to a fixed version: Mozilla Firefox 10.0.10, 16.0.2; Mozilla Seamonkey 2.13.2; Mozilla Thunderbird 16.0.2; Mozilla Thunderbird ESR 10.0.10. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00025.html
• http://rhn.redhat.com/errata/RHSA-2012-1407.html
• http://rhn.redhat.com/errata/RHSA-2012-1413.html
• http://secunia.com/advisories/51121
• http://secunia.com/advisories/51123
• http://secunia.com/advisories/51127
• http://secunia.com/advisories/51144
• http://secunia.com/advisories/51146
• http://secunia.com/advisories/51147
• http://secunia.com/advisories/51165
• http://secunia.com/advisories/55318

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