CVE-2011-4408 Security feature bypass in n/a

What is CVE-2011-4408?

CVE-2011-4408 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 16 Jun 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Single Sign On Client (ubuntu-sso-client) for Ubuntu 11.04 and 11.10 does not properly validate SSL certificates when using HTTPS, which allows remote attackers to spoof a server and modify or read sensitive data via a man-in-the-middle (MITM) attack.

Which versions are affected by CVE-2011-4408?

It affects 1 product.

Products include Canonical Ubuntu Linux.

How do I fix CVE-2011-4408?

No fix has been published for CVE-2011-4408 yet. Limit exposure of the affected software until one is available.

Is CVE-2011-4408 being exploited?

There is no known exploitation of CVE-2011-4408 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-c4ch-35xg-vqch.