CVEvulnerability

CVE-2009-3639

5.8 MEDIUM Published 2009-10-28 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-10-28
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:P
Weaknesses
CWE-310

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.

Affected configurations

• proftpd proftpd (<= 1.3.2) • proftpd proftpd 1.3.1 • proftpd proftpd 1.3.2 • proftpd proftpd 1.3.3

Related

Weakness · not in database (1)

References