CVE-2006-4343 Null dereference in n/a

What is CVE-2006-4343?

CVE-2006-4343 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 28 Sep 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference.

Weakness: CWE-476

Which versions are affected by CVE-2006-4343?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Openssl Openssl.

How do I fix CVE-2006-4343?

Upgrade to a fixed version.

Is CVE-2006-4343 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-4343 exists.

Public exploit code: 2 Exploit-DB entries.

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 DEBIAN-CVE-2006-4343, GHSA-vrm9-vqv5-39gr.