Debian Security Advisory DSA 3105-1 (heirloom-mailx - security update)

# OpenVAS Vulnerability Test
# $Id: deb_3105.nasl 6692 2017-07-12 09:57:43Z teissa $
# Auto-generated from advisory DSA 3105-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2014 Greenbone Networks GmbH http://greenbone.net
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#


if(description)
{
    script_id(703105);
    script_version("$Revision: 6692 $");
    script_cve_id("CVE-2004-2771", "CVE-2014-7844");
    script_name("Debian Security Advisory DSA 3105-1 (heirloom-mailx - security update)");
    script_tag(name: "last_modification", value: "$Date: 2017-07-12 11:57:43 +0200 (Wed, 12 Jul 2017) $");
    script_tag(name: "creation_date", value: "2014-12-16 00:00:00 +0100 (Tue, 16 Dec 2014)");
    script_tag(name: "cvss_base", value: "10.0");
    script_tag(name: "cvss_base_vector", value: "AV:N/AC:L/Au:N/C:C/I:C/A:C");
    script_tag(name: "solution_type", value: "VendorFix");

    script_xref(name: "URL", value: "http://www.debian.org/security/2014/dsa-3105.html");


    script_category(ACT_GATHER_INFO);

    script_copyright("Copyright (c) 2014 Greenbone Networks GmbH http://greenbone.net");
    script_family("Debian Local Security Checks");
    script_dependencies("gather-package-list.nasl");
    script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages");
    script_tag(name: "affected",  value: "heirloom-mailx on Debian Linux");
    script_tag(name: "insight",   value: "Workalike of the classical mail(1).
Heirloom mailx can produce and read MIME and S/MIME messages and has greatly
improved character-set handling, including support for UTF-8.");
    script_tag(name: "solution",  value: "For the stable distribution (wheezy),
these problems have been fixed in version 12.5-2+deb7u1.

We recommend that you upgrade your heirloom-mailx packages.");
    script_tag(name: "summary",   value: "Two security vulnerabilities were
discovered in Heirloom mailx, an implementation of the mail command:

CVE-2004-2771
mailx interprets interprets shell meta-characters in certain email
addresses.

CVE-2014-7844
An unexpected feature of mailx treats syntactically valid email
addresses as shell commands to execute.

Shell command execution can be re-enabled using the expandaddr
option.

Note that this security update does not remove all mailx facilities
for command execution, though. Scripts which send mail to addresses
obtained from an untrusted source (such as a web form) should use the
-- separator before the email addresses (which was fixed to work
properly in this update), or they should be changed to invoke
mail -t or sendmail -i -t instead, passing the recipient addresses
as part of the mail header.");
    script_tag(name: "vuldetect", value: "This check tests the installed
software version using the apt package manager.");
    script_tag(name:"qod_type", value:"package");
    exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

res = "";
report = "";
if ((res = isdpkgvuln(pkg:"heirloom-mailx", ver:"12.5-2+deb7u1", rls_regex:"DEB7.[0-9]")) != NULL) {
    report += res;
}

if (report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}