FreeBSD : fetchmail -- improper SSL certificate subject verification (5179d85c-8683-11de-91b9-0022157515b2)

This script is Copyright (C) 2009-2013 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

Matthias Andree reports :

Moxie Marlinspike demonstrated in July 2009 that some CAs would sign
certificates that contain embedded NUL characters in the Common Name
or subjectAltName fields of ITU-T X.509 certificates.

Applications that would treat such X.509 strings as NUL-terminated C
strings (rather than strings that contain an explicit length field)
would only check the part up to and excluding the NUL character, so
that certificate names such as www.good.example\0www.bad.example.com
would be mistaken as a certificate name for www.good.example.
fetchmail also had this design and implementation flaw.

See also :

http://www.fetchmail.info/fetchmail-SA-2009-01.txt
http://www.nessus.org/u?844b4ed6

Solution :

Update the affected package.

Risk factor :

Medium / CVSS Base Score : 6.4
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 40571 (freebsd_pkg_5179d85c868311de91b90022157515b2.nasl)

Bugtraq ID:

CVE ID: CVE-2009-2666

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