CVE-2009-2408 Security feature bypass in n/a

What is CVE-2009-2408?

CVE-2009-2408 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 30 Jul 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Mozilla Network Security Services (NSS) before 3.12.3, Firefox before 3.0.13, Thunderbird before 2.0.0.23, and SeaMonkey before 1.1.18 do not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. NOTE: this was originally reported for Firefox before 3.5.

Weakness: CWE-295

Which versions are affected by CVE-2009-2408?

It affects 9 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Mozilla Firefox, Mozilla Network Security Services, Mozilla Seamonkey, Mozilla Thunderbird and 3 more.

How do I fix CVE-2009-2408?

Upgrade to a fixed version.

Is CVE-2009-2408 being exploited?

There is no known exploitation of CVE-2009-2408 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 CVE-2009-2645, DEBIAN-CVE-2009-2408, GHSA-pm7c-vg9h-jxxc.