Debian dla-4632 : atril - 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-4632. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(321272);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/16");

  script_cve_id("CVE-2026-46529");

  script_name(english:"Debian dla-4632 : atril - 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 12 host has packages installed that are affected by a vulnerability as referenced in the dla-4632
advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4632-1                [email protected]
    https://www.debian.org/lts/security/                   Andreas Henriksson
    June 16, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : atril
    Version        : 1.26.0-2+deb12u4
    CVE ID         : CVE-2026-46529
    Debian Bug     : 1139874

    It was discovered that atril, a simple multi-page document viewer, is
    prone to a command injection vulnerability if a specially crafted PDF
    file is opened.

    For Debian 12 bookworm, this problem has been fixed in version
    1.26.0-2+deb12u4.

    For Debian 11 bullseye, see DLA 4597-1.

    We recommend that you upgrade your atril packages.

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

    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/atril");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-46529");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/atril");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/atril");
  script_set_attribute(attribute:"solution", value:
"Upgrade the atril packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/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:L/AC:H/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:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-46529");

  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:"2026/05/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:atril");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:atril-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gir1.2-atrildocument-1.5.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gir1.2-atrilview-1.5.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libatrildocument-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libatrildocument3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libatrilview-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libatrilview3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  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) 2026 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:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', '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': '12.0', 'prefix': 'atril', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'atril-common', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'gir1.2-atrildocument-1.5.0', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'gir1.2-atrilview-1.5.0', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'libatrildocument-dev', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'libatrildocument3', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'libatrilview-dev', 'reference': '1.26.0-2+deb12u4'},
    {'release': '12.0', 'prefix': 'libatrilview3', 'reference': '1.26.0-2+deb12u4'}
];

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, 'atril / atril-common / gir1.2-atrildocument-1.5.0 / etc');
}