CVE-2012-5821 Security feature bypass in n/a

What is CVE-2012-5821?

CVE-2012-5821 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 4 Nov 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.

Weakness: CWE-295

Which versions are affected by CVE-2012-5821?

It affects 2 products.

Products include Canonical Ubuntu Linux, Lynx Lynx.

How do I fix CVE-2012-5821?

Apply the vendor's patch.

Is CVE-2012-5821 being exploited?

There is no known exploitation of CVE-2012-5821 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-px54-5fmq-rf2f, MINI-4fxq-76r2-jvq9.