CVE-2009-3639

Aliases:DEBIAN-CVE-2009-3639
Advisory lineage Upstream: 0 Downstream: 3
Modified
Published: 28 Oct 2009, 14:00
Last modified:07 Aug 2024, 06:38

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.8 MEDIUM
v2.0 (nvd)
EPSS Score
5.7% LOW
6% probability +4.40%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 Oct 2009, 14:00
Published
Vulnerability first disclosed
07 Aug 2024, 06:38
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v2.0•MEDIUM•Score: 5.8AV:N/AC:M/Au:N/C:N/I:P/A:P

EPSS Trends

Current EPSS score: 5.70%• Percentile: 93%

Techniques & Countermeasures

  • CWE-310•Cryptographic Issues

    Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.

Affected Systems

  • debian•proftpd-dfsg

    < 1.3.2a-2 | < 1.3.2a-2 | < 1.3.2a-2 | < 1.3.2a-2

  • proftpd•proftpd

    ≤ 1.3.2 | 1.3.1 | 1.3.2 | 1.3.2:rc1 | 1.3.2:rc2 | 1.3.2:rc4 | 1.3.3:rc1

References (13)