Debian LTS Advisory ([SECURITY] [DLA 1038-1] libtasn1-3 security update)

2018-02-08T00:00:00
ID OPENVAS:1361412562310891038
Type openvas
Reporter Copyright (c) 2018 Greenbone Networks GmbH http://greenbone.net
Modified 2018-03-29T00:00:00

Description

CVE-2017-10790 The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer dereference and crash when reading crafted input that triggers assignment of a NULL value within an asn1_node structure. It may lead to a remote denial of service attack.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: deb_dla_1038.nasl 9250 2018-03-29 05:55:29Z cfischer $
#
# Auto-generated from advisory DLA 1038-1 using nvtgen 1.0
# Script version:1.0
# #
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2018 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_oid("1.3.6.1.4.1.25623.1.0.891038");
  script_version("$Revision: 9250 $");
  script_cve_id("CVE-2017-10790");
  script_name("Debian LTS Advisory ([SECURITY] [DLA 1038-1] libtasn1-3 security update)");
  script_tag(name:"last_modification", value:"$Date: 2018-03-29 07:55:29 +0200 (Thu, 29 Mar 2018) $");
  script_tag(name:"creation_date", value:"2018-02-08 00:00:00 +0100 (Thu, 08 Feb 2018)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  script_xref(name:"URL", value:"https://lists.debian.org/debian-lts-announce/2017/07/msg00029.html");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (c) 2018 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:"libtasn1-3 on Debian Linux");
  script_tag(name:"insight", value:"Manage ASN1 (Abstract Syntax Notation One) structures.
The main features of this library are:

* on-line ASN1 structure management that doesn't require any C code
file generation.
* off-line ASN1 structure management with C code file generation
containing an array.
* DER (Distinguish Encoding Rules) encoding
* no limits for INTEGER and ENUMERATED values");
  script_tag(name:"solution", value:"For Debian 7 'Wheezy', these problems have been fixed in version
2.13-2+deb7u5.

We recommend that you upgrade your libtasn1-3 packages.");
  script_tag(name:"summary",  value:"CVE-2017-10790
The _asn1_check_identifier function in GNU Libtasn1 through 4.12
causes a NULL pointer dereference and crash when reading crafted
input that triggers assignment of a NULL value within an asn1_node
structure. It may lead to a remote denial of service attack.");
  script_tag(name:"vuldetect", value:"This check tests the installed software version using the apt package manager.");

  exit(0);
}

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

res = "";
report = "";
if ((res = isdpkgvuln(pkg:"libtasn1-3", ver:"2.13-2+deb7u5", rls_regex:"DEB7\.[0-9]+", remove_arch:TRUE )) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libtasn1-3-bin", ver:"2.13-2+deb7u5", rls_regex:"DEB7\.[0-9]+", remove_arch:TRUE )) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libtasn1-3-dbg", ver:"2.13-2+deb7u5", rls_regex:"DEB7\.[0-9]+", remove_arch:TRUE )) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libtasn1-3-dev", ver:"2.13-2+deb7u5", rls_regex:"DEB7\.[0-9]+", remove_arch:TRUE )) != NULL) {
    report += res;
}

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