Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : LibTIFF vulnerabilities (USN-5421-1)

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5421-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(161209);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/16");

  script_cve_id(
    "CVE-2020-35522",
    "CVE-2022-0561",
    "CVE-2022-0562",
    "CVE-2022-0865",
    "CVE-2022-0891"
  );
  script_xref(name:"USN", value:"5421-1");

  script_name(english:"Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : LibTIFF vulnerabilities (USN-5421-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as
referenced in the USN-5421-1 advisory.

  - In LibTIFF, there is a memory malloc failure in tif_pixarlog.c. A crafted TIFF document can lead to an
    abort, resulting in a remote denial of service attack. (CVE-2020-35522)

  - Null source pointer passed as an argument to memcpy() function within TIFFFetchStripThing() in
    tif_dirread.c in libtiff versions from 3.9.0 to 4.3.0 could lead to Denial of Service via crafted TIFF
    file. For users that compile libtiff from sources, the fix is available with commit eecb0712.
    (CVE-2022-0561)

  - Null source pointer passed as an argument to memcpy() function within TIFFReadDirectory() in tif_dirread.c
    in libtiff versions from 4.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users
    that compile libtiff from sources, a fix is available with commit 561599c. (CVE-2022-0562)

  - Reachable Assertion in tiffcp in libtiff 4.3.0 allows attackers to cause a denial-of-service via a crafted
    tiff file. For users that compile libtiff from sources, the fix is available with commit 5e180045.
    (CVE-2022-0865)

  - A heap buffer overflow in ExtractImageSection function in tiffcrop.c in libtiff library Version 4.3.0
    allows attacker to trigger unsafe or out of bounds memory access via crafted TIFF image file which could
    result into application crash, potential information disclosure or any other context-dependent impact
    (CVE-2022-0891)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-5421-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0891");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff-opengl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff4-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff5-alt-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiff5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtiffxx5");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2022-2023 Canonical, Inc. / NASL script (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '16.04', 'pkgname': 'libtiff-opengl', 'pkgver': '4.0.6-1ubuntu0.8+esm1'},
    {'osver': '16.04', 'pkgname': 'libtiff-tools', 'pkgver': '4.0.6-1ubuntu0.8+esm1'},
    {'osver': '16.04', 'pkgname': 'libtiff5', 'pkgver': '4.0.6-1ubuntu0.8+esm1'},
    {'osver': '16.04', 'pkgname': 'libtiff5-dev', 'pkgver': '4.0.6-1ubuntu0.8+esm1'},
    {'osver': '16.04', 'pkgname': 'libtiffxx5', 'pkgver': '4.0.6-1ubuntu0.8+esm1'},
    {'osver': '18.04', 'pkgname': 'libtiff-dev', 'pkgver': '4.0.9-5ubuntu0.5'},
    {'osver': '18.04', 'pkgname': 'libtiff-opengl', 'pkgver': '4.0.9-5ubuntu0.5'},
    {'osver': '18.04', 'pkgname': 'libtiff-tools', 'pkgver': '4.0.9-5ubuntu0.5'},
    {'osver': '18.04', 'pkgname': 'libtiff5', 'pkgver': '4.0.9-5ubuntu0.5'},
    {'osver': '18.04', 'pkgname': 'libtiff5-dev', 'pkgver': '4.0.9-5ubuntu0.5'},
    {'osver': '18.04', 'pkgname': 'libtiffxx5', 'pkgver': '4.0.9-5ubuntu0.5'},
    {'osver': '20.04', 'pkgname': 'libtiff-dev', 'pkgver': '4.1.0+git191117-2ubuntu0.20.04.3'},
    {'osver': '20.04', 'pkgname': 'libtiff-opengl', 'pkgver': '4.1.0+git191117-2ubuntu0.20.04.3'},
    {'osver': '20.04', 'pkgname': 'libtiff-tools', 'pkgver': '4.1.0+git191117-2ubuntu0.20.04.3'},
    {'osver': '20.04', 'pkgname': 'libtiff5', 'pkgver': '4.1.0+git191117-2ubuntu0.20.04.3'},
    {'osver': '20.04', 'pkgname': 'libtiff5-dev', 'pkgver': '4.1.0+git191117-2ubuntu0.20.04.3'},
    {'osver': '20.04', 'pkgname': 'libtiffxx5', 'pkgver': '4.1.0+git191117-2ubuntu0.20.04.3'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libtiff-dev / libtiff-opengl / libtiff-tools / libtiff5 / etc');
}