National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-4318 Detail

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.

Source:  MITRE
Description Last Modified:  03/06/2013

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://hg.dovecot.org/dovecot-2.0/rev/5e9eaf63a6b1
http://rhn.redhat.com/errata/RHSA-2013-0520.html Vendor Advisory
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

Technical Details

Vulnerability Type (View All)

Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4318
NVD Published Date:
03/06/2013
NVD Last Modified:
03/07/2013