Debian DLA-3011-1 : vim - LTS security update

#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3011. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(161242);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/27");

  script_cve_id(
    "CVE-2022-0261",
    "CVE-2022-0351",
    "CVE-2022-0413",
    "CVE-2022-0443",
    "CVE-2022-0572",
    "CVE-2022-1154",
    "CVE-2022-1616",
    "CVE-2022-1619",
    "CVE-2022-1621"
  );

  script_name(english:"Debian DLA-3011-1 : 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-3011 advisory.

  - Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2. (CVE-2022-0261, CVE-2022-0572)

  - Access of Memory Location Before Start of Buffer in GitHub repository vim/vim prior to 8.2.
    (CVE-2022-0351)

  - Use After Free in GitHub repository vim/vim prior to 8.2. (CVE-2022-0413, CVE-2022-0443)

  - Use after free in utf_ptr2char in GitHub repository vim/vim prior to 8.2.4646. (CVE-2022-1154)

  - Use after free in append_command in GitHub repository vim/vim prior to 8.2.4895. This vulnerability is
    capable of crashing software, Bypass Protection Mechanism, Modify Memory, and possible remote execution
    (CVE-2022-1616)

  - Heap-based Buffer Overflow in function cmdline_erase_chars in GitHub repository vim/vim prior to 8.2.4899.
    This vulnerabilities are capable of crashing software, modify memory, and possible remote execution
    (CVE-2022-1619)

  - Heap buffer overflow in vim_strncpy find_word in GitHub repository vim/vim prior to 8.2.4919. This
    vulnerability is capable of crashing software, Bypass Protection Mechanism, Modify Memory, and possible
    remote execution (CVE-2022-1621)

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-3011");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0261");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0351");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0413");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0443");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0572");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-1154");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-1616");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-1619");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-1621");
  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:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-1621");

  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:"2022/01/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/17");

  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_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 release = get_kb_item('Host/Debian/release');
if ( isnull(release) ) audit(AUDIT_OS_NOT, 'Debian');
var release = chomp(release);
if (! preg(pattern:"^(9)\.[0-9]+", string:release)) audit(AUDIT_OS_NOT, 'Debian 9.0', '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+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-athena', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-common', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-doc', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-gnome', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-gtk', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-gtk3', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-gui-common', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-nox', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-runtime', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'vim-tiny', 'reference': '2:8.0.0197-4+deb9u6'},
    {'release': '9.0', 'prefix': 'xxd', 'reference': '2:8.0.0197-4+deb9u6'}
];

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