Debian DLA-2947-1 : vim - LTS security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-2947. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(158978);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/01/24");

  script_cve_id(
    "CVE-2021-3872",
    "CVE-2021-3927",
    "CVE-2021-3928",
    "CVE-2021-3973",
    "CVE-2021-3974",
    "CVE-2021-3984",
    "CVE-2021-4019",
    "CVE-2021-4069",
    "CVE-2021-4192",
    "CVE-2021-4193",
    "CVE-2022-0213",
    "CVE-2022-0319",
    "CVE-2022-0359",
    "CVE-2022-0361",
    "CVE-2022-0368",
    "CVE-2022-0408",
    "CVE-2022-0554",
    "CVE-2022-0685",
    "CVE-2022-0714",
    "CVE-2022-0729"
  );

  script_name(english:"Debian DLA-2947-1 : vim - 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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-2947 advisory.

    Multiple security vulnerabilities have been discovered in vim, an enhanced vi editor. Buffer overflows,
    out-of-bounds reads and Null pointer dereferences may lead to a denial of service (application crash) or
    other unspecified impact. For Debian 9 stretch, these problems have been fixed in version
    2:8.0.0197-4+deb9u5. We recommend that you upgrade your vim packages. For the detailed security status of
    vim please refer to its security tracker page at: https://security-tracker.debian.org/tracker/vim 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

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/vim");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2022/dla-2947");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3872");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3927");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3928");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3973");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3974");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3984");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-4019");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-4069");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-4192");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-4193");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0213");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0319");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0359");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0361");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0368");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0408");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0554");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0685");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0714");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0729");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/vim");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vim packages.

For Debian 9 stretch, these problems have been fixed in version 2");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:L/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-2021-3973");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-0729");

  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:"2021/10/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/03/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/03/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-athena");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-gtk3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-gui-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-runtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim-tiny");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xxd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  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) 2022-2025 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:"^(9)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 9.0', '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': '9.0', 'prefix': 'vim', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-athena', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-common', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-doc', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-gnome', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-gtk', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-gtk3', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-gui-common', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-nox', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-runtime', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'vim-tiny', 'reference': '2:8.0.0197-4+deb9u5'},
    {'release': '9.0', 'prefix': 'xxd', 'reference': '2:8.0.0197-4+deb9u5'}
];

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, 'vim / vim-athena / vim-common / vim-doc / vim-gnome / vim-gtk / etc');
}