FreeBSD : Exim -- remote code execution (b0f3ab1f-1f3b-11e2-8fe9-0022156e8794)

Medium Nessus Plugin ID 62706


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


This vulnerability affects Exim instances built with DKIM enabled (this is the default for FreeBSD Exim port) and running verification of DKIM signatures on the incoming mail messages.

Phil Penncock reports :

This is a SECURITY release, addressing a CRITICAL remote code execution flaw in versions of Exim between 4.70 and 4.80 inclusive, when built with DKIM support (the default).

This security vulnerability can be exploited by anyone who can send email from a domain for which they control the DNS.

You are not vulnerable if you built Exim with DISABLE_DKIM or if you put this at the start of an ACL plumbed into acl_smtp_connect or acl_smtp_rcpt : warn control = dkim_disable_verify


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 62706

File Name: freebsd_pkg_b0f3ab1f1f3b11e28fe90022156e8794.nasl

Version: $Revision: 1.4 $

Type: local

Published: 2012/10/26

Modified: 2013/06/22

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:exim, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2012/10/26

Vulnerability Publication Date: 2012/10/25

Reference Information

CVE: CVE-2012-5671