FreeBSD : fetchmail -- NULL pointer dereference in multidrop mode with headerless email (f7eb0b23-7099-11da-a15c-0060084a00e5)

This script is Copyright (C) 2006-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The fetchmail team reports :

Fetchmail contains a bug that causes an application crash when
fetchmail is configured for multidrop mode and the upstream mail
server sends a message without headers. As fetchmail does not record
this message as 'previously fetched', it will crash with the same
message if it is re-executed, so it cannot make progress. A malicious
or broken-into upstream server could thus cause a denial of service in
fetchmail clients.

See also :

http://www.fetchmail.info/fetchmail-SA-2005-03.txt
http://article.gmane.org/gmane.mail.fetchmail.user/7573
http://bugs.debian.org/343836
http://www.nessus.org/u?17606d84

Solution :

Update the affected package.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 21541 (freebsd_pkg_f7eb0b23709911daa15c0060084a00e5.nasl)

Bugtraq ID:

CVE ID: CVE-2005-4348

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