Debian DLA-3231-1 : dlt-daemon - LTS security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3231. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(168488);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/20");

  script_cve_id("CVE-2020-29394", "CVE-2020-36244", "CVE-2022-31291");

  script_name(english:"Debian DLA-3231-1 : dlt-daemon - LTS security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-3231 advisory.

  - A buffer overflow in the dlt_filter_load function in dlt_common.c from dlt-daemon through 2.18.5 (GENIVI
    Diagnostic Log and Trace) allows arbitrary code execution because fscanf is misused (no limit on the
    number of characters to be read in the format argument). (CVE-2020-29394)

  - The daemon in GENIVI diagnostic log and trace (DLT), is vulnerable to a heap-based buffer overflow that
    could allow an attacker to remotely execute arbitrary code on the DLT-Daemon (versions prior to 2.18.6).
    (CVE-2020-36244)

  - An issue in dlt_config_file_parser.c of dlt-daemon v2.18.8 allows attackers to cause a double free via
    crafted TCP packets. (CVE-2022-31291)

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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976228");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/dlt-daemon");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2022/dla-3231");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-29394");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-36244");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-31291");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/dlt-daemon");
  script_set_attribute(attribute:"solution", value:
"Upgrade the dlt-daemon packages.

For Debian 10 buster, these problems have been fixed in version 2.18.0-1+deb10u1.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-36244");

  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:"2020/11/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/12/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dlt-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dlt-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libdlt-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libdlt-examples");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libdlt2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/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);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '10.0', 'prefix': 'dlt-daemon', 'reference': '2.18.0-1+deb10u1'},
    {'release': '10.0', 'prefix': 'dlt-tools', 'reference': '2.18.0-1+deb10u1'},
    {'release': '10.0', 'prefix': 'libdlt-dev', 'reference': '2.18.0-1+deb10u1'},
    {'release': '10.0', 'prefix': 'libdlt-examples', 'reference': '2.18.0-1+deb10u1'},
    {'release': '10.0', 'prefix': 'libdlt2', 'reference': '2.18.0-1+deb10u1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'dlt-daemon / dlt-tools / libdlt-dev / libdlt-examples / libdlt2');
}