CVE ID:	CVE-2009-3639
Description:	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.
Test IDs:	1.3.6.1.4.1.25623.1.0.100316   1.3.6.1.4.1.25623.1.0.66291   1.3.6.1.4.1.25623.1.0.66205   1.3.6.1.4.1.25623.1.0.66290
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2009-3639 36804 http://www.securityfocus.com/bid/36804 37131 http://secunia.com/advisories/37131 37219 http://secunia.com/advisories/37219 DSA-1925 http://www.debian.org/security/2009/dsa-1925 FEDORA-2009-11649 https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00642.html FEDORA-2009-11666 https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00649.html MDVSA-2009:288 http://www.mandriva.com/security/advisories?name=MDVSA-2009:288 [oss-security] 20091023 Re: proftpd - mod_tls - Improper SSL/TLS certificate subjectAltName verification http://marc.info/?l=oss-security&m=125632960508211&w=2 [oss-security] 20091023 proftpd - mod_tls - Improper SSL/TLS certificate subjectAltName verification http://marc.info/?l=oss-security&m=125630966510672&w=2 http://bugs.proftpd.org/show_bug.cgi?id=3275 http://bugs.proftpd.org/show_bug.cgi?id=3275 https://bugzilla.redhat.com/show_bug.cgi?id=530719 https://bugzilla.redhat.com/show_bug.cgi?id=530719 proftpd-modtls-security-bypass(53936) https://exchange.xforce.ibmcloud.com/vulnerabilities/53936