Vulnerabilities > CVE-2016-2120 - Integer Overflow or Wraparound vulnerability in multiple products

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2017-cbd5501d31.
#

include("compat.inc");

if (description)
{
  script_id(96849);
  script_version("3.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");
  script_xref(name:"FEDORA", value:"2017-cbd5501d31");

  script_name(english:"Fedora 25 : pdns (2017-cbd5501d31)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - Update to 4.0.3

  - Security fix for CVE-2016-2120, CVE-2016-7068,
    CVE-2016-7072, CVE-2016-7073, CVE-2016-7074

Release notes 4.0.2:
https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4
02 Release notes 4.0.3:
https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4
03

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2017-cbd5501d31"
  );
  # https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-403
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0934651b"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected pdns package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:pdns");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:25");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/30");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^25([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 25", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC25", reference:"pdns-4.0.3-1.fc25")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "pdns");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2017-112.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(96583);
  script_version("3.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");

  script_name(english:"openSUSE Security Update : pdns (openSUSE-2017-112)");
  script_summary(english:"Check for the openSUSE-2017-112 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for pdns fixes the following issues :

  - CVE-2016-2120: Crafted zone record could have caused a
    denial of service (bsc#1018329).

  - CVE-2016-7068: Crafted queries could have caused
    abnormal CPU usage (bsc#1018326).

  - CVE-2016-7072: Denial of service via the web server
    (bsc#1018327).

  - CVE-2016-7073: Fixed insufficient validation of TSIG
    signatures (bsc#1018328).

  - CVE-2016-7074: Fixed insufficient validation of TSIG
    signatures ((bsc#1018328)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018326"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018327"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018328"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018329"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected pdns packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-ldap-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-lua-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mydns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mydns-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mysql-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-postgresql-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-sqlite3-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/18");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE13\.2|SUSE42\.1|SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.2 / 42.1 / 42.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE13.2", reference:"pdns-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-ldap-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-ldap-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-lua-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-lua-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mydns-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mydns-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mysql-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mysql-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-postgresql-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-postgresql-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-sqlite3-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-sqlite3-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-debugsource-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-ldap-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-ldap-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-lua-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-lua-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mydns-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mydns-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mysql-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mysql-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-postgresql-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-postgresql-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-sqlite3-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-sqlite3-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-debugsource-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-ldap-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-ldap-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-lua-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-lua-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mydns-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mydns-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mysql-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mysql-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-postgresql-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-postgresql-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-sqlite3-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-sqlite3-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-debugsource-3.4.9-3.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "pdns / pdns-backend-ldap / pdns-backend-ldap-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(96620);
  script_version("3.3");
  script_cvs_date("Date: 2018/11/23 12:49:58");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");

  script_name(english:"FreeBSD : powerdns -- multiple vulnerabilities (e3200958-dd6c-11e6-ae1b-002590263bf5)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"PowerDNS reports :

2016-02: Crafted queries can cause abnormal CPU usage

2016-03: Denial of service via the web server

2016-04: Insufficient validation of TSIG signatures

2016-05: Crafted zone record can cause a denial of service"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216135"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216136"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-05/"
  );
  # https://blog.powerdns.com/2017/01/13/powerdns-authoritative-server-4-0-2-released/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?58ab7632"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://blog.powerdns.com/2017/01/13/powerdns-recursor-4-0-4-released/"
  );
  # https://vuxml.freebsd.org/freebsd/e3200958-dd6c-11e6-ae1b-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?2dc5f290"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:powerdns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:powerdns-recursor");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/19");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"powerdns<3.4.11")) flag++;
if (pkg_test(save_report:TRUE, pkg:"powerdns>=4.0.0<4.0.2")) flag++;
if (pkg_test(save_report:TRUE, pkg:"powerdns-recursor<3.7.4")) flag++;
if (pkg_test(save_report:TRUE, pkg:"powerdns-recursor>=4.0.0<4.0.4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-798-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(96779);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");

  script_name(english:"Debian DLA-798-1 : pdns security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities have been discovered in pdns, an
authoritative DNS server. The Common Vulnerabilities and Exposures
project identifies the following problems :

CVE-2016-2120

Mathieu Lafon discovered that pdns does not properly validate records
in zones. An authorized user can take advantage of this flaw to crash
server by inserting a specially crafted record in a zone under their
control and then sending a DNS query for that record.

CVE-2016-7068

Florian Heinz and Martin Kluge reported that pdns parses all records
present in a query regardless of whether they are needed or even
legitimate, allowing a remote, unauthenticated attacker to cause an
abnormal CPU usage load on the pdns server, resulting in a partial
denial of service if the system becomes overloaded.

CVE-2016-7072

Mongo discovered that the webserver in pdns is susceptible to a
denial of service vulnerability. A remote, unauthenticated attacker to
cause a denial of service by opening a large number of f TCP
connections to the web server.

CVE-2016-7073 / CVE-2016-7074

Mongo discovered that pdns does not sufficiently validate TSIG
signatures, allowing an attacker in position of man-in-the-middle to
alter the content of an AXFR.

For Debian 7 'Wheezy', these problems have been fixed in version
3.1-4.1+deb7u3.

We recommend that you upgrade your pdns packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2017/01/msg00033.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/pdns"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-geo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-pipe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-server-dbg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"pdns-backend-geo", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-ldap", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-lua", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-mysql", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-pgsql", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-pipe", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-sqlite", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-sqlite3", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-server", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-server-dbg", reference:"3.1-4.1+deb7u3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");