FreeBSD Ports: gzip

#
#VID 11a84092-8f9f-11db-ab33-000e0c2e438a
# OpenVAS Vulnerability Test
# $
# Description: Auto generated from vuxml or freebsd advisories
#
# Authors:
# Thomas Reinke <[email protected]>
#
# Copyright:
# Copyright (c) 2008 E-Soft Inc. http://www.securityspace.com
# Text descriptions are largely excerpted from the referenced
# advisories, 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 version 2,
# as published by the Free Software Foundation
#
# 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.
#

include("revisions-lib.inc");
tag_insight = "The following package is affected: gzip

CVE-2006-4334
Unspecified vulnerability in gzip 1.3.5 allows context-dependent
attackers to cause a denial of service (crash) via a crafted GZIP (gz)
archive, which results in a NULL dereference.

CVE-2006-4335
Array index error in the make_table function in unlzh.c in the LZH
decompression component in gzip 1.3.5, when running on certain
platforms, allows context-dependent attackers to cause a denial of
service (crash) and possibly execute arbitrary code via a crafted GZIP
archive that triggers an out-of-bounds write, aka a 'stack
modification vulnerability.'

CVE-2006-4336
Buffer underflow in the build_tree function in unpack.c in gzip 1.3.5 allows
context-dependent attackers to execute arbitrary code via a crafted leaf
count table that causes a write to a negative index.

CVE-2006-4337
Buffer overflow in the make_table function in the LHZ component in
gzip 1.3.5 allows context-dependent attackers to execute arbitrary
code via a crafted decoding table in a GZIP archive.

CVE-2006-4338
unlzh.c in the LHZ component in gzip 1.3.5 allows context-dependent
attackers to cause a denial of service (infinite loop) via a crafted
GZIP archive.";
tag_summary = "The remote host is missing an update to the system
as announced in the referenced advisory.";

tag_solution = "Update your system with the appropriate patches or
software upgrades.";
if(description)
{
 script_id(57726);
 script_version("$Revision: 4118 $");
 script_tag(name:"last_modification", value:"$Date: 2016-09-20 07:32:38 +0200 (Tue, 20 Sep 2016) $");
 script_tag(name:"creation_date", value:"2008-09-04 20:41:11 +0200 (Thu, 04 Sep 2008)");
 script_cve_id("CVE-2006-4334", "CVE-2006-4335", "CVE-2006-4336", "CVE-2006-4337", "CVE-2006-4338");
 script_tag(name:"cvss_base", value:"7.5");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_name("FreeBSD Ports: gzip");



 script_category(ACT_GATHER_INFO);

 script_copyright("Copyright (c) 2006 E-Soft Inc. http://www.securityspace.com");
 script_family("FreeBSD Local Security Checks");
 script_dependencies("gather-package-list.nasl");
 script_mandatory_keys("ssh/login/freebsdrel", "login/SSH/success");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "insight" , value : tag_insight);
 script_tag(name : "summary" , value : tag_summary);
 script_tag(name:"qod_type", value:"package");
 script_tag(name:"solution_type", value:"VendorFix");
 exit(0);
}

#
# The script code starts here
#

include("pkg-lib-bsd.inc");

txt = "";
vuln = 0;
bver = portver(pkg:"gzip");
if(!isnull(bver) && revcomp(a:bver, b:"0")>0) {
    txt += 'Package gzip version ' + bver + ' is installed which is known to be vulnerable.\n';
    vuln = 1;
}

if(vuln) {
    security_message(data:string(txt));
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}