CVE-2012-4193 Security feature bypass in n/a

Medium 6.8 Published 12 Oct 2012 Updated 6 Aug 2024

Remote attackers can bypass Same Origin Policy to read Location properties or execute arbitrary JavaScript via a crafted website in Firefox, Thunderbird, and SeaMonkey.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2012-4193?

CVE-2012-4193 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 12 Oct 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Mozilla Firefox before 16.0.1, Firefox ESR 10.x before 10.0.9, Thunderbird before 16.0.1, Thunderbird ESR 10.x before 10.0.9, and SeaMonkey before 2.13.1 omit a security check in the defaultValue function during the unwrapping of security wrappers, which allows remote attackers to bypass the Same Origin Policy and read the properties of a Location object, or execute arbitrary JavaScript code, via a crafted web site.

Weakness: CWE-346

Which versions are affected by CVE-2012-4193?

It affects 12 products.

Linux distribution packages (30)

`thunderbird` Red Hat:enterprise_linux:5::client	All versions	`0:10.0.8-2.el5_8`
`thunderbird-debuginfo` Red Hat:enterprise_linux:5::client	All versions	`0:10.0.8-2.el5_8`
`xulrunner` Red Hat:enterprise_linux:5::client	All versions	`0:10.0.8-2.el5_8`
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client	All versions	`0:10.0.8-2.el5_8`
`xulrunner` Red Hat:enterprise_linux:5::client_workstation	All versions	`0:10.0.8-2.el5_8`
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::client_workstation	All versions	`0:10.0.8-2.el5_8`
`xulrunner-devel` Red Hat:enterprise_linux:5::client_workstation	All versions	`0:10.0.8-2.el5_8`
`xulrunner` Red Hat:enterprise_linux:5::server	All versions	`0:10.0.8-2.el5_8`
`xulrunner-debuginfo` Red Hat:enterprise_linux:5::server	All versions	`0:10.0.8-2.el5_8`
`xulrunner-devel` Red Hat:enterprise_linux:5::server	All versions	`0:10.0.8-2.el5_8`
`thunderbird` Red Hat:enterprise_linux:6::client	All versions	`0:10.0.8-2.el6_3`
`thunderbird-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:10.0.8-2.el6_3`
`xulrunner` Red Hat:enterprise_linux:6::client	All versions	`0:10.0.8-2.el6_3`
`xulrunner-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:10.0.8-2.el6_3`
`xulrunner-devel` Red Hat:enterprise_linux:6::client	All versions	`0:10.0.8-2.el6_3`
`xulrunner` Red Hat:enterprise_linux:6::computenode	All versions	`0:10.0.8-2.el6_3`
`xulrunner-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`0:10.0.8-2.el6_3`
`xulrunner-devel` Red Hat:enterprise_linux:6::computenode	All versions	`0:10.0.8-2.el6_3`
`thunderbird` Red Hat:enterprise_linux:6::server	All versions	`0:10.0.8-2.el6_3`
`thunderbird-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:10.0.8-2.el6_3`
`xulrunner` Red Hat:enterprise_linux:6::server	All versions	`0:10.0.8-2.el6_3`
`xulrunner-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:10.0.8-2.el6_3`
`xulrunner-devel` Red Hat:enterprise_linux:6::server	All versions	`0:10.0.8-2.el6_3`
`thunderbird` Red Hat:enterprise_linux:6::workstation	All versions	`0:10.0.8-2.el6_3`
`thunderbird-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:10.0.8-2.el6_3`
`xulrunner` Red Hat:enterprise_linux:6::workstation	All versions	`0:10.0.8-2.el6_3`
`xulrunner-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:10.0.8-2.el6_3`
`xulrunner-devel` Red Hat:enterprise_linux:6::workstation	All versions	`0:10.0.8-2.el6_3`
`thunderbird` Red Hat:rhel_productivity:5	All versions	`0:10.0.8-2.el5_8`
`thunderbird-debuginfo` Red Hat:rhel_productivity:5	All versions	`0:10.0.8-2.el5_8`

Products include Canonical Ubuntu Linux, Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird, Mozilla Thunderbird Esr, Redhat Enterprise Linux Desktop and 6 more.

How do I fix CVE-2012-4193?

Upgrade to a fixed version.

Is CVE-2012-4193 being exploited?

There is no known exploitation of CVE-2012-4193 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-64fw-qfj6-6pc5, RHSA-2012:1361, RHSA-2012:1362.