Vulnerability Details CVE-2011-4318
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 58.7%
CVSS Severity
CVSS v2 Score 5.8
References
- http://hg.dovecot.org/dovecot-2.0/rev/5e9eaf63a6b1
- http://rhn.redhat.com/errata/RHSA-2013-0520.html
- http://secunia.com/advisories/46886
- http://secunia.com/advisories/52311
- http://www.dovecot.org/list/dovecot-news/2011-November/000200.html
- http://www.openwall.com/lists/oss-security/2011/11/18/5
- http://www.openwall.com/lists/oss-security/2011/11/18/7
- https://bugs.gentoo.org/show_bug.cgi?id=390887
- https://bugzilla.redhat.com/show_bug.cgi?id=754980
- http://hg.dovecot.org/dovecot-2.0/rev/5e9eaf63a6b1
- http://rhn.redhat.com/errata/RHSA-2013-0520.html
- http://secunia.com/advisories/46886
- http://secunia.com/advisories/52311
- http://www.dovecot.org/list/dovecot-news/2011-November/000200.html
- http://www.openwall.com/lists/oss-security/2011/11/18/5
- http://www.openwall.com/lists/oss-security/2011/11/18/7
- https://bugs.gentoo.org/show_bug.cgi?id=390887
- https://bugzilla.redhat.com/show_bug.cgi?id=754980
Products affected by CVE-2011-4318
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cpe:2.3:a:dovecot:dovecot:2.0.0
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cpe:2.3:a:dovecot:dovecot:2.0.1
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cpe:2.3:a:dovecot:dovecot:2.0.10
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cpe:2.3:a:dovecot:dovecot:2.0.11
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cpe:2.3:a:dovecot:dovecot:2.0.12
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cpe:2.3:a:dovecot:dovecot:2.0.13
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cpe:2.3:a:dovecot:dovecot:2.0.14
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cpe:2.3:a:dovecot:dovecot:2.0.15
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cpe:2.3:a:dovecot:dovecot:2.0.2
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cpe:2.3:a:dovecot:dovecot:2.0.3
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cpe:2.3:a:dovecot:dovecot:2.0.4
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cpe:2.3:a:dovecot:dovecot:2.0.5
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cpe:2.3:a:dovecot:dovecot:2.0.6
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cpe:2.3:a:dovecot:dovecot:2.0.7
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cpe:2.3:a:dovecot:dovecot:2.0.8
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cpe:2.3:a:dovecot:dovecot:2.0.9