Vulnerabilities > CVE-2016-6906 - Out-of-bounds Read vulnerability in Libgd

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3777. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(96912);
  script_version("3.6");
  script_cvs_date("Date: 2018/11/10 11:49:38");

  script_cve_id("CVE-2016-10166", "CVE-2016-10167", "CVE-2016-10168", "CVE-2016-6906", "CVE-2016-6912", "CVE-2016-9317");
  script_xref(name:"DSA", value:"3777");

  script_name(english:"Debian DSA-3777-1 : libgd2 - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities have been discovered in libgd2, a library for
programmatic graphics creation and manipulation, which may result in
denial of service or potentially the execution of arbitrary code if a
malformed file is processed."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/libgd2"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-3777"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the libgd2 packages.

For the stable distribution (jessie), these problems have been fixed
in version 2.1.0-5+deb8u9."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H/I:H/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:libgd2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/02/01");
  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:"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:"8.0", prefix:"libgd-dbg", reference:"2.1.0-5+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgd-dev", reference:"2.1.0-5+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgd-tools", reference:"2.1.0-5+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgd2-noxpm-dev", reference:"2.1.0-5+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgd2-xpm-dev", reference:"2.1.0-5+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgd3", reference:"2.1.0-5+deb8u9")) 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");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:0468-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(97203);
  script_version("3.7");
  script_cvs_date("Date: 2019/09/11 11:22:14");

  script_cve_id("CVE-2016-10166", "CVE-2016-10167", "CVE-2016-10168", "CVE-2016-6906", "CVE-2016-6912", "CVE-2016-9317");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : gd (SUSE-SU-2017:0468-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for gd fixes the following security issues :

  - CVE-2016-6906: An out-of-bounds read in TGA
    decompression was fixed which could have lead to
    crashes. (bsc#1022553)

  - CVE-2016-6912: Double free vulnerability in the
    gdImageWebPtr function in the GD Graphics Library (aka
    libgd) allowed remote attackers to have unspecified
    impact via large width and height values. (bsc#1022284)

  - CVE-2016-9317: The gdImageCreate function in the GD
    Graphics Library (aka libgd) allowed remote attackers to
    cause a denial of service (system hang) via an oversized
    image. (bsc#1022283)

  - CVE-2016-10166: A potential unsigned underflow in gd
    interpolation functions could lead to memory corruption
    in the GD Graphics Library (aka libgd) (bsc#1022263)

  - CVE-2016-10167: A denial of service problem in
    gdImageCreateFromGd2Ctx() could lead to libgd running
    out of memory even on small files. (bsc#1022264)

  - CVE-2016-10168: A signed integer overflow in the GD
    Graphics Library (aka libgd) could lead to memory
    corruption (bsc#1022265)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=1022263"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022264"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022265"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022283"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022284"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022553"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-10166/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-10167/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-10168/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-6906/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-6912/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9317/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20170468-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c734a7bb"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP2:zypper in -t patch
SUSE-SLE-WE-12-SP2-2017-241=1

SUSE Linux Enterprise Workstation Extension 12-SP1:zypper in -t patch
SUSE-SLE-WE-12-SP1-2017-241=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2017-241=1

SUSE Linux Enterprise Software Development Kit 12-SP1:zypper in -t
patch SUSE-SLE-SDK-12-SP1-2017-241=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-241=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-241=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2017-241=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-241=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP1-2017-241=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H/I:H/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:novell:suse_linux:gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gd-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/02/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/02/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 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/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1|2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1/2", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(1|2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP1/2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"gd-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"gd-debuginfo-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"gd-debugsource-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"gd-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"gd-debuginfo-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"gd-debugsource-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"gd-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"gd-32bit-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"gd-debuginfo-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"gd-debuginfo-32bit-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"gd-debugsource-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"gd-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"gd-32bit-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"gd-debuginfo-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"gd-debuginfo-32bit-2.1.0-23.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"gd-debugsource-2.1.0-23.1")) 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, "gd");
}

#%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-2017-289.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(97369);
  script_version("3.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-10166", "CVE-2016-10167", "CVE-2016-10168", "CVE-2016-6906", "CVE-2016-6912", "CVE-2016-9317");

  script_name(english:"openSUSE Security Update : gd (openSUSE-2017-289)");
  script_summary(english:"Check for the openSUSE-2017-289 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 gd fixes the following security issues :

  - CVE-2016-6906: An out-of-bounds read in TGA
    decompression was fixed which could have lead to
    crashes. (bsc#1022553)

  - CVE-2016-6912: Double free vulnerability in the
    gdImageWebPtr function in the GD Graphics Library (aka
    libgd) allowed remote attackers to have unspecified
    impact via large width and height values. (bsc#1022284)

  - CVE-2016-9317: The gdImageCreate function in the GD
    Graphics Library (aka libgd) allowed remote attackers to
    cause a denial of service (system hang) via an oversized
    image. (bsc#1022283)

  - CVE-2016-10166: A potential unsigned underflow in gd
    interpolation functions could lead to memory corruption
    in the GD Graphics Library (aka libgd) (bsc#1022263)

  - CVE-2016-10167: A denial of service problem in
    gdImageCreateFromGd2Ctx() could lead to libgd running
    out of memory even on small files. (bsc#1022264)

  - CVE-2016-10168: A signed integer overflow in the GD
    Graphics Library (aka libgd) could lead to memory
    corruption (bsc#1022265)

This update was imported from the SUSE:SLE-12:Update update project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022263"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022264"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022265"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022283"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022284"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022553"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected gd packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gd-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gd-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gd-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gd-devel");
  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:"2017/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/02/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc.");
  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 !~ "^(SUSE42\.1|SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "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:"SUSE42.1", reference:"gd-2.1.0-19.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"gd-debuginfo-2.1.0-19.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"gd-debugsource-2.1.0-19.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"gd-devel-2.1.0-19.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", cpu:"x86_64", reference:"gd-32bit-2.1.0-19.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", cpu:"x86_64", reference:"gd-debuginfo-32bit-2.1.0-19.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"gd-2.1.0-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"gd-debuginfo-2.1.0-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"gd-debugsource-2.1.0-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"gd-devel-2.1.0-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"gd-32bit-2.1.0-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"gd-debuginfo-32bit-2.1.0-16.1") ) 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, "gd / gd-32bit / gd-debuginfo / gd-debuginfo-32bit / gd-debugsource / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3213-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(97468);
  script_version("3.5");
  script_cvs_date("Date: 2019/09/18 12:31:46");

  script_cve_id("CVE-2016-10166", "CVE-2016-10167", "CVE-2016-10168", "CVE-2016-6906", "CVE-2016-6912", "CVE-2016-9317", "CVE-2016-9933");
  script_xref(name:"USN", value:"3213-1");

  script_name(english:"Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : libgd2 vulnerabilities (USN-3213-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Stefan Esser discovered that the GD library incorrectly handled memory
when processing certain images. If a user or automated system were
tricked into processing a specially crafted image, an attacker could
cause a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu
16.10. (CVE-2016-10166)

It was discovered that the GD library incorrectly handled certain
malformed images. If a user or automated system were tricked into
processing a specially crafted image, an attacker could cause a denial
of service. (CVE-2016-10167)

It was discovered that the GD library incorrectly handled certain
malformed images. If a user or automated system were tricked into
processing a specially crafted image, an attacker could cause a denial
of service, or possibly execute arbitrary code. (CVE-2016-10168)

Ibrahim El-Sayed discovered that the GD library incorrectly handled
certain malformed TGA images. If a user or automated system were
tricked into processing a specially crafted TGA image, an attacker
could cause a denial of service. This issue only affected Ubuntu 14.04
LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6906)

Ibrahim El-Sayed discovered that the GD library incorrectly handled
certain malformed WebP images. If a user or automated system were
tricked into processing a specially crafted WebP image, an attacker
could cause a denial of service, or possibly execute arbitrary code.
This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu
16.10. (CVE-2016-6912)

It was discovered that the GD library incorrectly handled creating
oversized images. If a user or automated system were tricked into
creating a specially crafted image, an attacker could cause a denial
of service. (CVE-2016-9317)

It was discovered that the GD library incorrectly handled filling
certain images. If a user or automated system were tricked into
filling an image, an attacker could cause a denial of service.
(CVE-2016-9933).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/3213-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libgd2-noxpm, libgd2-xpm and / or libgd3 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H/I:H/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:canonical:ubuntu_linux:libgd2-noxpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgd2-xpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgd3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/02/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(12\.04|14\.04|16\.04|16\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 14.04 / 16.04 / 16.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"12.04", pkgname:"libgd2-noxpm", pkgver:"2.0.36~rc1~dfsg-6ubuntu2.4")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libgd2-xpm", pkgver:"2.0.36~rc1~dfsg-6ubuntu2.4")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"libgd3", pkgver:"2.1.0-3ubuntu0.6")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"libgd3", pkgver:"2.1.1-4ubuntu0.16.04.6")) flag++;
if (ubuntu_check(osver:"16.10", pkgname:"libgd3", pkgver:"2.2.1-1ubuntu3.3")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libgd2-noxpm / libgd2-xpm / libgd3");
}