NewStart CGSL MAIN 7.02 : gpsd Multiple Vulnerabilities (NS-SA-2026-0106)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2026-0106. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(343586);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/08");

  script_cve_id("CVE-2025-67268", "CVE-2025-67269");
  script_xref(name:"IAVA", value:"2026-A-0033");

  script_name(english:"NewStart CGSL MAIN 7.02 : gpsd Multiple Vulnerabilities (NS-SA-2026-0106)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 7.02, has gpsd packages installed that are affected by multiple
vulnerabilities:

  - An integer underflow vulnerability exists in the `nextstate()` function in `gpsd/packet.c` of gpsd
    versions prior to commit `ffa1d6f40bca0b035fc7f5e563160ebb67199da7`. When parsing a NAVCOM packet, the
    payload length is calculated using `lexer->length = (size_t)c - 4` without checking if the input byte `c`
    is less than 4. This results in an unsigned integer underflow, setting `lexer->length` to a very large
    value (near `SIZE_MAX`). The parser then enters a loop attempting to consume this massive number of bytes,
    causing 100% CPU utilization and a Denial of Service (DoS) condition. (CVE-2025-67269)

  - gpsd before commit dc966aa contains a heap-based out-of-bounds write vulnerability in the
    drivers/driver_nmea2000.c file. The hnd_129540 function, which handles NMEA2000 PGN 129540 (GNSS
    Satellites in View) packets, fails to validate the user-supplied satellite count against the size of the
    skyview array (184 elements). This allows an attacker to write beyond the bounds of the array by providing
    a satellite count up to 255, leading to memory corruption, Denial of Service (DoS), and potentially
    arbitrary code execution. (CVE-2025-67268)

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://security.gd-linux.com/notice/NS-SA-2026-0106");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2025-67268");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2025-67269");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL gpsd packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:N/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-2025-67268");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2025-67269");

  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:"2026/01/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd-qt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd-qt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gpsd-xclients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-gpsd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  exit(0);
}

include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var os_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (os_release !~ "CGSL\sMAIN\s7\.02")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 7.02');

if (!get_kb_item('Host/ZTE-CGSL/rpm-list')) 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);

var flag = 0;

var pkgs = {
  'CGSL MAIN 7.02': [
    'gpsd-3.25-4.zncgsl7.1',
    'gpsd-clients-3.25-4.zncgsl7.1',
    'gpsd-devel-3.25-4.zncgsl7.1',
    'gpsd-libs-3.25-4.zncgsl7.1',
    'gpsd-qt-3.25-4.zncgsl7.1',
    'gpsd-qt-devel-3.25-4.zncgsl7.1',
    'gpsd-xclients-3.25-4.zncgsl7.1',
    'python3-gpsd-3.25-4.zncgsl7.1'
  ]
};
var pkg_list = pkgs[os_release];
var pkg;
foreach (pkg in pkg_list)
  if (rpm_check(reference:pkg, release:'ZTE ' + os_release, rpm_spec_vers_cmp:TRUE)) flag++;

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