CVE-2009-3639

Publication date 28 October 2009

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a ‘\0’ character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Status

No maintained releases are affected by this CVE.

Package Ubuntu Release Status
proftpd-dfsg 11.10 oneiric
Not affected
11.04 natty
Not affected
10.10 maverick
Not affected
10.04 LTS lucid
Not affected
9.10 karmic Ignored end of life
9.04 jaunty Ignored end of life
8.10 intrepid Ignored end of life, was needed
8.04 LTS hardy Ignored end of life
6.06 LTS dapper Not in release