Debian Security Advisory DSA 2773-1 (gnupg - several vulnerabilities)

2013-10-10T00:00:00
ID OPENVAS:1361412562310892773
Type openvas
Reporter Copyright (c) 2013 Greenbone Networks GmbH http://greenbone.net
Modified 2019-03-18T00:00:00

Description

Two vulnerabilities were discovered in GnuPG, the GNU privacy guard, a free PGP replacement. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2013-4351When a key or subkey had its key flags subpacket set to all bits off, GnuPG currently would treat the key as having all bits set. That is, where the owner wanted to indicate no use permitted, GnuPG would interpret it as all use permitted. Such no use permitted keys are rare and only used in very special circumstances.

CVE-2013-4402 Infinite recursion in the compressed packet parser was possible with crafted input data, which may be used to cause a denial of service.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: deb_2773.nasl 14276 2019-03-18 14:43:56Z cfischer $
# Auto-generated from advisory DSA 2773-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2013 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("1.3.6.1.4.1.25623.1.0.892773");
  script_version("$Revision: 14276 $");
  script_cve_id("CVE-2013-4402", "CVE-2013-4351");
  script_name("Debian Security Advisory DSA 2773-1 (gnupg - several vulnerabilities)");
  script_tag(name:"last_modification", value:"$Date: 2019-03-18 15:43:56 +0100 (Mon, 18 Mar 2019) $");
  script_tag(name:"creation_date", value:"2013-10-10 00:00:00 +0200 (Thu, 10 Oct 2013)");
  script_tag(name:"cvss_base", value:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:N");

  script_xref(name:"URL", value:"http://www.debian.org/security/2013/dsa-2773.html");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2013 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", re:"ssh/login/release=DEB(6|7)");
  script_tag(name:"affected", value:"gnupg on Debian Linux");
  script_tag(name:"solution", value:"For the oldstable distribution (squeeze), these problems have been fixed in
version 1.4.10-4+squeeze3.

For the stable distribution (wheezy), these problems have been fixed in
version 1.4.12-7+deb7u2.

For the unstable distribution (sid), these problems have been fixed in
version 1.4.15-1.

We recommend that you upgrade your gnupg packages.");
  script_tag(name:"summary", value:"Two vulnerabilities were discovered in GnuPG, the GNU privacy guard,
a free PGP replacement. The Common Vulnerabilities and Exposures
project identifies the following problems:

CVE-2013-4351When a key or subkey had its key flags subpacket set to all bits
off, GnuPG currently would treat the key as having all bits set.
That is, where the owner wanted to indicate no use permitted,
GnuPG would interpret it as all use permitted. Such no use
permitted
keys are rare and only used in very special circumstances.

CVE-2013-4402
Infinite recursion in the compressed packet parser was possible
with crafted input data, which may be used to cause a denial of
service.");
  script_tag(name:"vuldetect", value:"This check tests the installed software version using the apt package manager.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

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

res = "";
report = "";
if((res = isdpkgvuln(pkg:"gnupg", ver:"1.4.10-4+squeeze3", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gnupg-curl", ver:"1.4.10-4+squeeze3", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gnupg-udeb", ver:"1.4.10-4+squeeze3", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gpgv", ver:"1.4.10-4+squeeze3", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gpgv-udeb", ver:"1.4.10-4+squeeze3", rls:"DEB6")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gnupg", ver:"1.4.12-7+deb7u2", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gnupg-curl", ver:"1.4.12-7+deb7u2", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gpgv", ver:"1.4.12-7+deb7u2", rls:"DEB7")) != NULL) {
  report += res;
}
if((res = isdpkgvuln(pkg:"gpgv-win32", ver:"1.4.12-7+deb7u2", rls:"DEB7")) != NULL) {
  report += res;
}

if(report != "") {
  security_message(data:report);
} else if(__pkg_match) {
  exit(99);
}