CVE-2012-0475 Security feature bypass in n/a

What is CVE-2012-0475?

CVE-2012-0475 is a low-severity vulnerability in Mozilla Firefox, published on 25 Apr 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 4.x through 11.0, Thunderbird 5.0 through 11.0, and SeaMonkey before 2.9 do not properly construct the Origin and Sec-WebSocket-Origin HTTP headers, which might allow remote attackers to bypass an IPv6 literal ACL via a cross-site (1) XMLHttpRequest or (2) WebSocket operation involving a nonstandard port number and an IPv6 address that contains certain zero fields.

Weakness: CWE-264

Which versions are affected by CVE-2012-0475?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird.

How do I fix CVE-2012-0475?

Upgrade to a fixed version.

Is CVE-2012-0475 being exploited?

There is no known exploitation of CVE-2012-0475 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hrwx-3jg2-pr78.