Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2009-3639

Published: Oct 28, 2009 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
4.3 LOW
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2009-3639
CWEhttps://cwe.mitre.org/data/definitions/310.html

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 Software

NameVendorStart VersionEnd Version
ProftpdProftpd*1.3.2 (including)
ProftpdProftpd1.3.1 (including)1.3.1 (including)
ProftpdProftpd1.3.2 (including)1.3.2 (including)
ProftpdProftpd1.3.2-rc1 (including)1.3.2-rc1 (including)
ProftpdProftpd1.3.2-rc2 (including)1.3.2-rc2 (including)
ProftpdProftpd1.3.2-rc4 (including)1.3.2-rc4 (including)
ProftpdProftpd1.3.3-rc1 (including)1.3.3-rc1 (including)
Proftpd-dfsgUbuntuhardy*
Proftpd-dfsgUbuntuintrepid*
Proftpd-dfsgUbuntujaunty*
Proftpd-dfsgUbuntukarmic*
Proftpd-dfsgUbuntuupstream*

References

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