Unscored severity · published Oct 28, 2009
CVE-2009-3639
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…
–
CVSS
5.7%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)5.7% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
Proftpd · Proftpd
through 1.3.2; 1.3.1; 1.3.2; 1.3.2; 1.3.2; 1.3.2; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2009-3639
CVE.org
https://www.cve.org/CVERecord?id=CVE-2009-3639
bugs.proftpd.org
http://bugs.proftpd.org/show_bug.cgi?id=3275
marc.info
http://marc.info/?l=oss-security&m=125630966510672&w=2
marc.info
http://marc.info/?l=oss-security&m=125632960508211&w=2
Vendor Advisory
http://secunia.com/advisories/37131
secunia.com
http://secunia.com/advisories/37219
www.debian.org
http://www.debian.org/security/2009/dsa-1925
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