CVE-2009-2666
fetchmail - SSL certificate verification weakness
EPSS 0.66%
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.
How to fix CVE-2009-2666
To remediate CVE-2009-2666, upgrade the affected package to a fixed version below.
- Debian/fetchmail—upgrade to 6.3.9~rc2-6 or later
- —upgrade to 6.3.6-1etch2 or later
Is CVE-2009-2666 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 6.3.9~rc2-6
- from 0, < 6.3.6-1etch2