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 an X.509 certificate, which allows man-in-the-middle attackers
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.50% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 74.0% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2009-08-07 18:33Z17 YR AGO
- Last updated
- 2024-08-07 05:59Z2 YR AGO
- Reserved
- 2009-08-05
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 2417bacb3ebf8c6406ad27181063968cfea879ed789881c35abd4cb80aa4d4b4
05 Affected products
06 References
- www.mandriva.comMDVSA-2009:201http://www.mandriva.com/security/advisories?name=MDVSA-2009:201
- secunia.com36175http://secunia.com/advisories/36175
- secunia.com36236http://secunia.com/advisories/36236
- www.debian.orgDSA-1852http://www.debian.org/security/2009/dsa-1852
- fetchmail.berlios.dehttp://fetchmail.berlios.de/fetchmail-SA-2009-01.txt
- marc.info[oss-security] 20090805 Re: CVE request: fetchmail <= 6.3.10 SSL certificatehttp://marc.info/?l=oss-security&m=124949601207156&w=2
- www.securityfocus.com20090806 fetchmail security announcement fetchmail-SA-2009-01 (CVE-2009-2666)http://www.securityfocus.com/archive/1/505530/100/0/threaded
- www.slackware.comSSA:2009-218-01http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.543463
- secunia.com36179http://secunia.com/advisories/36179
- www.securitytracker.com1022679http://www.securitytracker.com/id?1022679
- osvdb.org56855http://osvdb.org/56855
- oval.cisecurity.orgoval:org.mitre.oval:def:11059https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11059
- www.vupen.comADV-2009-3184http://www.vupen.com/english/advisories/2009/3184
- www.vupen.comADV-2009-2155http://www.vupen.com/english/advisories/2009/2155
- lists.apple.comAPPLE-SA-2009-11-09-1http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
- support.apple.comhttp://support.apple.com/kb/HT3937
- www.securityfocus.com35951http://www.securityfocus.com/bid/35951
07 Fixed in
Debian 12
- fetchmail Fixed in 6.3.9~rc2-6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- fetchmail Fixed in 6.3.9~rc2-6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- fetchmail Fixed in 6.3.9~rc2-6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.