CVE-2011-4318
EPSS 0.32%
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.
How to fix CVE-2011-4318
To remediate CVE-2011-4318, upgrade the affected package to a fixed version below.
- Debian/dovecot—upgrade to 1:2.0.18-1 or later
Is CVE-2011-4318 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:2.0.18-1