CVE-2012-3976 Information disclosure in n/a

What is CVE-2012-3976?

CVE-2012-3976 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 29 Aug 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 15.0, Firefox ESR 10.x before 10.0.7, and SeaMonkey before 2.12 do not properly handle onLocationChange events during navigation between different https sites, which allows remote attackers to spoof the X.509 certificate information in the address bar via a crafted web page.

Weakness: CWE-200

Which versions are affected by CVE-2012-3976?

It affects 12 products.

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

How do I fix CVE-2012-3976?

Upgrade to a fixed version.

Is CVE-2012-3976 being exploited?

There is no known exploitation of CVE-2012-3976 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

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

Also known as GHSA-42j4-67r4-889f.