VULNERABILITY INTELLIGENCE

CVE-2011-4318

CVSS score5.8 MEDIUM
EPSS probability1.32%
CISA KEVNot currently listed
Published2013-03-07
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N

Description

Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references