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 to spoof arbitrary SSL servers via a crafted…
Does this matter?
Lower severity and a low EPSS score (1.50%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:N
- EPSS
- 1.50% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-310
- Affected
- fetchmail/fetchmail
- Source
- cve@mitre.org
References
- http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
- http://marc.info/?l=oss-security&m=124949601207156&w=2
- http://osvdb.org/56855
- http://secunia.com/advisories/36175Vendor Advisory
- http://secunia.com/advisories/36179Vendor Advisory
- http://secunia.com/advisories/36236Vendor Advisory
- http://support.apple.com/kb/HT3937
- http://www.debian.org/security/2009/dsa-1852
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:201
- http://www.securityfocus.com/archive/1/505530/100/0/threaded
- http://www.securityfocus.com/bid/35951
- http://www.securitytracker.com/id?1022679
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.543463
- http://www.vupen.com/english/advisories/2009/2155Vendor Advisory
- http://www.vupen.com/english/advisories/2009/3184Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11059
- http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
- http://marc.info/?l=oss-security&m=124949601207156&w=2
- http://osvdb.org/56855
- http://secunia.com/advisories/36175Vendor Advisory
- http://secunia.com/advisories/36179Vendor Advisory
- http://secunia.com/advisories/36236Vendor Advisory
- http://support.apple.com/kb/HT3937
- http://www.debian.org/security/2009/dsa-1852
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:201
- http://www.securityfocus.com/archive/1/505530/100/0/threaded
- http://www.securityfocus.com/bid/35951
- http://www.securitytracker.com/id?1022679
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.