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.
Metrics
CVSS 2.0 5.8/10
AV:N/AC:M/Au:N/C:N/I:P/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://bugs.proftpd.org/show_bug.cgi?id=3275
- http://marc.info/?l=oss-security&m=125630966510672&w=2
- http://marc.info/?l=oss-security&m=125632960508211&w=2
- http://secunia.com/advisories/37131Vendor Advisory
- http://secunia.com/advisories/37219
- http://www.debian.org/security/2009/dsa-1925
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:288
- http://www.securityfocus.com/bid/36804Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=530719Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53936
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00642.html
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00649.html
- http://bugs.proftpd.org/show_bug.cgi?id=3275
- http://marc.info/?l=oss-security&m=125630966510672&w=2
- http://marc.info/?l=oss-security&m=125632960508211&w=2
- http://secunia.com/advisories/37131Vendor Advisory
- http://secunia.com/advisories/37219
- http://www.debian.org/security/2009/dsa-1925
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:288
- http://www.securityfocus.com/bid/36804Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=530719Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53936
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00642.html
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00649.html
Timeline
- Published
- Oct 28, 2009
- Last modified
- Jun 16, 2026
- NVD status
- Modified