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.
References (9)
Core 9
Core References
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/46886
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2013-0520.html
Issue Tracking x_refsource_misc
https://bugs.gentoo.org/show_bug.cgi?id=390887
Issue Tracking x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=754980
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/52311
Various Sources x_refsource_confirm
http://hg.dovecot.org/dovecot-2.0/rev/5e9eaf63a6b1
Various Sources mailing-list
x_refsource_mlist
http://www.dovecot.org/list/dovecot-news/2011-November/000200.html
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2011/11/18/7
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2011/11/18/5
Scores
EPSS
0.0132
EPSS Percentile
67.5%
Details
CWE
CWE-20
Status
published
Products (16)
dovecot/dovecot
2.0.0
dovecot/dovecot
2.0.1
dovecot/dovecot
2.0.2
dovecot/dovecot
2.0.3
dovecot/dovecot
2.0.4
dovecot/dovecot
2.0.5
dovecot/dovecot
2.0.6
dovecot/dovecot
2.0.7
dovecot/dovecot
2.0.8
dovecot/dovecot
2.0.9
... and 6 more
Published
Mar 07, 2013
Tracked Since
Feb 18, 2026