What’s Vulnerable › Vulnerabilities

CVE-2012-4208

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-11-21 · updated 2026-06-16
• Weakness: CWE-200

Description

The XrayWrapper implementation in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 does not consider the compartment during property filtering, which allows remote attackers to bypass intended chrome-only restrictions on reading DOM object properties via a crafted web site.

Affected products

• Canonical Ubuntu Linux: 10.04, 11.10, 12.04, 12.10
• Mozilla Firefox: before 17.0 — fixed in 17.0
• Mozilla Seamonkey: before 2.14 — fixed in 2.14
• Mozilla Thunderbird: before 17.0 — fixed in 17.0
• Opensuse: 11.4, 12.1, 12.2
• 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 17.0; Mozilla Seamonkey 2.14; Mozilla Thunderbird 17.0. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html
• http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html
• http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html
• http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html
• http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html
• http://secunia.com/advisories/51369
• http://secunia.com/advisories/51370
• http://secunia.com/advisories/51381
• http://secunia.com/advisories/51434
• http://secunia.com/advisories/51439
• http://secunia.com/advisories/51440
• http://www.mozilla.org/security/announce/2012/mfsa2012-99.html

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