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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…
Medium5.8EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.3% · top 29% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Weakness
Affected products
n/a
- affected n/a
References (9)
- 46886 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2013:0520 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugs.gentoo.org/show_bug.cgi?id=390887 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=754980 (opens in a new tab)x_refsource_MISCx_transferred
- 52311 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://hg.dovecot.org/dovecot-2.0/rev/5e9eaf63a6b1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [dovecot-news] 20111117 v2.0.16 released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20111118 Re: CVE Request -- Dovecot -- Validate certificate's CN against requested remote server hostname when proxying (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20111118 Re: CVE Request -- Dovecot -- Validate certificate's CN against requested remote server hostname when proxying (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .