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CVE-2009-2666
socket.c in fetchmail before 6.3.11 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of…
Medium6.4EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
socket.c in fetchmail before 6.3.11 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.5% · top 26% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Weakness
Affected products
n/a
- affected n/a
References (17)
- MDVSA-2009:201 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 36175 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 36236 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-1852 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090805 Re: CVE request: fetchmail <= 6.3.10 SSL certificate (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20090806 fetchmail security announcement fetchmail-SA-2009-01 (CVE-2009-2666) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- SSA:2009-218-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- 36179 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1022679 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 56855 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- oval:org.mitre.oval:def:11059 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ADV-2009-3184 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2009-2155 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- APPLE-SA-2009-11-09-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- http://support.apple.com/kb/HT3937 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35951 (opens in a new tab)vdb-entryx_refsource_BIDx_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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-2666)Record last updated .