Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 : Vim vulnerabilities (USN-6557-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6557-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(186991);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/15");

  script_cve_id(
    "CVE-2022-1725",
    "CVE-2022-1771",
    "CVE-2022-1886",
    "CVE-2022-1897",
    "CVE-2022-2000",
    "CVE-2022-2042",
    "CVE-2023-46246",
    "CVE-2023-48231",
    "CVE-2023-48232",
    "CVE-2023-48233",
    "CVE-2023-48234",
    "CVE-2023-48235",
    "CVE-2023-48236",
    "CVE-2023-48237",
    "CVE-2023-48706"
  );
  script_xref(name:"IAVA", value:"2023-A-0598-S");
  script_xref(name:"IAVA", value:"2023-A-0650");
  script_xref(name:"IAVB", value:"2022-B-0049-S");
  script_xref(name:"USN", value:"6557-1");

  script_name(english:"Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 : Vim vulnerabilities (USN-6557-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 host has packages installed that are
affected by multiple vulnerabilities as referenced in the USN-6557-1 advisory.

  - NULL Pointer Dereference in GitHub repository vim/vim prior to 8.2.4959. (CVE-2022-1725)

  - Uncontrolled Recursion in GitHub repository vim/vim prior to 8.2.4975. (CVE-2022-1771)

  - Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2. (CVE-2022-1886)

  - Out-of-bounds Write in GitHub repository vim/vim prior to 8.2. (CVE-2022-1897, CVE-2022-2000)

  - Use After Free in GitHub repository vim/vim prior to 8.2. (CVE-2022-2042)

  - Vim is an improved version of the good old UNIX editor Vi. Heap-use-after-free in memory allocated in the
    function `ga_grow_inner` in in the file `src/alloc.c` at line 748, which is freed in the file
    `src/ex_docmd.c` in the function `do_cmdline` at line 1010 and then used again in `src/cmdhist.c` at line
    759. When using the `:history` command, it's possible that the provided argument overflows the accepted
    value. Causing an Integer Overflow and potentially later an use-after-free. This vulnerability has been
    patched in version 9.0.2068. (CVE-2023-46246)

  - Vim is an open source command line text editor. When closing a window, vim may try to access already freed
    window structure. Exploitation beyond crashing the application has not been shown to be viable. This issue
    has been addressed in commit `25aabc2b` which has been included in release version 9.0.2106. Users are
    advised to upgrade. There are no known workarounds for this vulnerability. (CVE-2023-48231)

  - Vim is an open source command line text editor. A floating point exception may occur when calculating the
    line offset for overlong lines and smooth scrolling is enabled and the cpo-settings include the 'n' flag.
    This may happen when a window border is present and when the wrapped line continues on the next physical
    line directly in the window border because the 'cpo' setting includes the 'n' flag. Only users with non-
    default settings are affected and the exception should only result in a crash. This issue has been
    addressed in commit `cb0b99f0` which has been included in release version 9.0.2107. Users are advised to
    upgrade. There are no known workarounds for this vulnerability. (CVE-2023-48232)

  - Vim is an open source command line text editor. If the count after the :s command is larger than what fits
    into a (signed) long variable, abort with e_value_too_large. Impact is low, user interaction is required
    and a crash may not even happen in all situations. This issue has been addressed in commit `ac6378773`
    which has been included in release version 9.0.2108. Users are advised to upgrade. There are no known
    workarounds for this vulnerability. (CVE-2023-48233)

  - Vim is an open source command line text editor. When getting the count for a normal mode z command, it may
    overflow for large counts given. Impact is low, user interaction is required and a crash may not even
    happen in all situations. This issue has been addressed in commit `58f9befca1` which has been included in
    release version 9.0.2109. Users are advised to upgrade. There are no known workarounds for this
    vulnerability. (CVE-2023-48234)

  - Vim is an open source command line text editor. When parsing relative ex addresses one may unintentionally
    cause an overflow. Ironically this happens in the existing overflow check, because the line number becomes
    negative and LONG_MAX - lnum will cause the overflow. Impact is low, user interaction is required and a
    crash may not even happen in all situations. This issue has been addressed in commit `060623e` which has
    been included in release version 9.0.2110. Users are advised to upgrade. There are no known workarounds
    for this vulnerability. (CVE-2023-48235)

  - Vim is an open source command line text editor. When using the z= command, the user may overflow the count
    with values larger than MAX_INT. Impact is low, user interaction is required and a crash may not even
    happen in all situations. This vulnerability has been addressed in commit `73b2d379` which has been
    included in release version 9.0.2111. Users are advised to upgrade. There are no known workarounds for
    this vulnerability. (CVE-2023-48236)

  - Vim is an open source command line text editor. In affected versions when shifting lines in operator
    pending mode and using a very large value, it may be possible to overflow the size of integer. Impact is
    low, user interaction is required and a crash may not even happen in all situations. This issue has been
    addressed in commit `6bf131888` which has been included in version 9.0.2112. Users are advised to upgrade.
    There are no known workarounds for this vulnerability. (CVE-2023-48237)

  - Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When
    executing a `:s` command for the very first time and using a sub-replace-special atom inside the
    substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later
    then be accessed by the initial `:s` command. The user must intentionally execute the payload and the
    whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It
    may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue. (CVE-2023-48706)

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://ubuntu.com/security/notices/USN-6557-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-2042");

  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:"2022/05/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/12/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/12/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:esm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-athena");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-athena-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gnome-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk3-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gui-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-lesstif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-motif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-nox-py2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-runtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-tiny");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:xxd");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"Ubuntu Security Notice (C) 2023 Canonical, Inc. / NASL script (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/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);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release || '23.04' >< os_release || '23.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04 / 22.04 / 23.04 / 23.10', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '16.04', 'pkgname': 'vim', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-athena', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-athena-py2', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-common', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gnome', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gnome-py2', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gtk', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gtk-py2', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gtk3', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gtk3-py2', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-nox', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-nox-py2', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-runtime', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '16.04', 'pkgname': 'vim-tiny', 'pkgver': '2:7.4.1689-3ubuntu1.5+esm22'},
    {'osver': '18.04', 'pkgname': 'vim', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-athena', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-common', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-gnome', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-gtk', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-gtk3', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-nox', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-runtime', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'vim-tiny', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '18.04', 'pkgname': 'xxd', 'pkgver': '2:8.0.1453-1ubuntu1.13+esm7'},
    {'osver': '20.04', 'pkgname': 'vim', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-athena', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-common', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-gtk', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-gtk3', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-nox', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-runtime', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'vim-tiny', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '20.04', 'pkgname': 'xxd', 'pkgver': '2:8.1.2269-1ubuntu5.21'},
    {'osver': '22.04', 'pkgname': 'vim', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-athena', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-common', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-gtk', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-gtk3', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-nox', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-runtime', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'vim-tiny', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '22.04', 'pkgname': 'xxd', 'pkgver': '2:8.2.3995-1ubuntu2.15'},
    {'osver': '23.04', 'pkgname': 'vim', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-athena', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-common', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-gtk3', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-gui-common', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-motif', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-nox', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-runtime', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'vim-tiny', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.04', 'pkgname': 'xxd', 'pkgver': '2:9.0.1000-4ubuntu3.3'},
    {'osver': '23.10', 'pkgname': 'vim', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-athena', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-common', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-gtk3', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-gui-common', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-motif', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-nox', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-runtime', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'vim-tiny', 'pkgver': '2:9.0.1672-1ubuntu2.2'},
    {'osver': '23.10', 'pkgname': 'xxd', 'pkgver': '2:9.0.1672-1ubuntu2.2'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'vim / vim-athena / vim-athena-py2 / vim-common / vim-gnome / etc');
}