Ubuntu.comUB:CVE-2011-4318CVE-2011-4318
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
EPSS
Percentile
68.2%
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.
Bugs
Notes
| Author | Note |
|---|---|
| jdstrand | SSL proxy connections were added in some Dovecot v1.x versions, but but v1.x doesn’t support giving hostname as proxy destination, only IP address. (per upstream) |
References
www.dovecot.org/list/dovecot-news/2011-November/000200.html
www.openwall.com/lists/oss-security/2011/11/18/4
launchpad.net/bugs/cve/CVE-2011-4318
nvd.nist.gov/vuln/detail/CVE-2011-4318
security-tracker.debian.org/tracker/CVE-2011-4318
ubuntu.com/security/notices/USN-1295-1
www.cve.org/CVERecord?id=CVE-2011-4318
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
EPSS
Percentile
68.2%