Debian dla-3988 : python-jinja2 - 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-3988. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(212161);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/12/09");

  script_name(english:"Debian dla-3988 : python-jinja2 - 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 11 host has packages installed that are affected by a vulnerability as referenced in the dla-3988
advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-3988-2                [email protected]
    https://www.debian.org/lts/security/                          Adrian Bunk
    December 09, 2024                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : jinja2
    Version        : 2.11.3-1+deb11u2

    This update fixes a regression that broke the python-jinja2 package
    for Python 2.

    Note that while this regression has been fixed, running applications
    with Python 2 continues to be unsupported in Debian 11 bullseye:
    https://www.debian.org/releases/bullseye/amd64/release-notes/ch-information.en.html#obsolescense-and-
    deprecation

    For Debian 11 bullseye, this problem has been fixed in version
    2.11.3-1+deb11u2.

    We recommend that you upgrade your jinja2 packages.

    For the detailed security status of jinja2 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/jinja2

    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 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/jinja2");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/jinja2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the python-jinja2 packages.");
  script_set_attribute(attribute:"risk_factor", value:"Medium");

  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:"2024/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/12/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-jinja2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-jinja2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-jinja2");
  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) 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:"^(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': 'python-jinja2', 'reference': '2.11.3-1+deb11u2'},
    {'release': '11.0', 'prefix': 'python-jinja2-doc', 'reference': '2.11.3-1+deb11u2'},
    {'release': '11.0', 'prefix': 'python3-jinja2', 'reference': '2.11.3-1+deb11u2'}
];

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, 'python-jinja2 / python-jinja2-doc / python3-jinja2');
}