Debian dla-3849 : emacs - 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-3849. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(201160);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/29");

  script_cve_id("CVE-2024-39331");
  script_xref(name:"IAVA", value:"2024-A-0368");

  script_name(english:"Debian dla-3849 : emacs - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3849
advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-3849-1                [email protected]
    https://www.debian.org/lts/security/                         Sean Whitton
    June 29, 2024                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : emacs
    Version        : emacs 1:26.1+1-3.2+deb10u6
    CVE ID         : CVE-2024-39331
    Debian Bug     : 1074136

    A vulnerability was discovered in GNU Emacs, the extensible,
    customisable, self-documenting display editor.

    The org-link-expand-abbrev function expanded a %(...) link abbrev even
    when the abbrev specified an unsafe function, such as
    shell-command-to-string.

    This could lead to arbitrary code execution as soon as an Org-mode
    format file was opened, including one embedded in an e-mail message.

    For Debian 10 buster, these problems have been fixed in version
    1:26.1+1-3.2+deb10u6.

    We recommend that you upgrade your org-mode packages.

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

    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 this issue 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/org-mode");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-39331");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/emacs");
  script_set_attribute(attribute:"solution", value:
"Upgrade the emacs packages.");
  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:U/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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-39331");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/06/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/06/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs-bin-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs-el");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs-lucid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs21");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs21-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs22");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs22-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs22-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs23");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs23-lucid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs23-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs24");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs24-lucid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs24-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs25");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs25-lucid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:emacs25-nox");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  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:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 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:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', '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': '10.0', 'prefix': 'emacs', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs-bin-common', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs-common', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs-el', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs-gtk', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs-lucid', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs-nox', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs21', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs21-nox', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs22', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs22-gtk', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs22-nox', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs23', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs23-lucid', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs23-nox', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs24', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs24-lucid', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs24-nox', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs25', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs25-lucid', 'reference': '1:26.1+1-3.2+deb10u6'},
    {'release': '10.0', 'prefix': 'emacs25-nox', 'reference': '1:26.1+1-3.2+deb10u6'}
];

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, 'emacs / emacs-bin-common / emacs-common / emacs-el / emacs-gtk / etc');
}