Debian dla-4283 : libluajit-5.1-2 - 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-4283. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(255190);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/08/25");

  script_cve_id(
    "CVE-2019-19391",
    "CVE-2020-15890",
    "CVE-2020-24372",
    "CVE-2024-25176",
    "CVE-2024-25177",
    "CVE-2024-25178"
  );

  script_name(english:"Debian dla-4283 : libluajit-5.1-2 - 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 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4283 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4283-1                [email protected]
    https://www.debian.org/lts/security/                       Guilhem Moulin
    August 25, 2025                               https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : luajit
    Version        : 2.1.0~beta3+dfsg-5.3+deb11u1
    CVE ID         : CVE-2019-19391 CVE-2020-15890 CVE-2020-24372 CVE-2024-25176
                     CVE-2024-25177 CVE-2024-25178
    Debian Bug     : 946053 966148

    Multiple vulnerabilities were found in luajit, a just in time compiler
    for the Lua programming language, which could lead to denial of service.

    CVE-2019-19391

        It was discovered that debug.getinfo() has a type confusion issue
        that leads to arbitrary memory write or read operations, because
        certain cases involving valid stack levels and `>` options are
        mishandled.

        NOTE: The LuaJIT project owner disputes the vulnerability and states
        that the debug library is unsafe by design.

    CVE-2020-15890

        Yongheng Chen discovered an out-of-bounds read because `__gc`
        handler frame traversal is mishandled.

    CVE-2020-24372

        Yongheng Chen discovered out-of-bounds read in lj_err_run().

    CVE-2024-25176

        Kutyavin Maxim discovered a stack-buffer-overflow in
        lj_strfmt_wfnum().

    CVE-2024-25177

        Kutyavin Maxim discovered an unsinking of IR_FSTORE for NULL
        metatable.

    CVE-2024-25178

        Kutyavin Maxim discovered an out-of-bounds read in the
        stack-overflow handler.

    For Debian 11 bullseye, these problems have been fixed in version
    2.1.0~beta3+dfsg-5.3+deb11u1.

    We recommend that you upgrade your luajit packages.

    For the detailed security status of luajit please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/luajit

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS
    Attachment:
    signature.asc
    Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

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-tracker.debian.org/tracker/source-package/luajit");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2019-19391");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-15890");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-24372");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-25176");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-25177");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-25178");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/luajit");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libluajit-5.1-2 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  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:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-19391");

  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:"2019/11/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libluajit-5.1-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libluajit-5.1-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libluajit-5.1-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:luajit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  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) 2025 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:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', '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': '11.0', 'prefix': 'libluajit-5.1-2', 'reference': '2.1.0~beta3+dfsg-5.3+deb11u1'},
    {'release': '11.0', 'prefix': 'libluajit-5.1-common', 'reference': '2.1.0~beta3+dfsg-5.3+deb11u1'},
    {'release': '11.0', 'prefix': 'libluajit-5.1-dev', 'reference': '2.1.0~beta3+dfsg-5.3+deb11u1'},
    {'release': '11.0', 'prefix': 'luajit', 'reference': '2.1.0~beta3+dfsg-5.3+deb11u1'}
];

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_WARNING,
    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, 'libluajit-5.1-2 / libluajit-5.1-common / libluajit-5.1-dev / luajit');
}