CVE-2009-3639

Published: 28 October 2009

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.

Priority

Medium

Status

Package Release Status
proftpd-dfsg
Launchpad, Ubuntu, Debian
Upstream
Released (1.3.2b-1)