Debian dsa-6212 : golang-github-lxc-incus-dev - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-6212. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(307618);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/23");

  script_cve_id("CVE-2026-34178", "CVE-2026-34179");

  script_name(english:"Debian dsa-6212 : golang-github-lxc-incus-dev - 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 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dsa-6212 advisory.

    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-6212-1                   [email protected]
    https://www.debian.org/security/                       Moritz Muehlenhoff
    April 15, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : incus
    CVE ID         : CVE-2026-34178 CVE-2026-34179

    Two security issues were discovered in Incus, a system container and
    virtual machine manager, which could result in restriction bypass
    or privilege escalation.

    For the stable distribution (trixie), these problems have been fixed in
    version 6.0.4-2+deb13u6.

    We recommend that you upgrade your incus packages.

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

    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/

    Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

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/incus");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-34178");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-34179");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/trixie/incus");
  script_set_attribute(attribute:"solution", value:
"Upgrade the golang-github-lxc-incus-dev packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/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:N/AC:L/PR:H/UI:N/S:C/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-2026-34179");

  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:"2026/04/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:golang-github-lxc-incus-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:incus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:incus-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:incus-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:incus-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:incus-extra");
  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:"^(13)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 13.0', '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': '13.0', 'prefix': 'golang-github-lxc-incus-dev', 'reference': '6.0.4-2+deb13u6'},
    {'release': '13.0', 'prefix': 'incus', 'reference': '6.0.4-2+deb13u6'},
    {'release': '13.0', 'prefix': 'incus-agent', 'reference': '6.0.4-2+deb13u6'},
    {'release': '13.0', 'prefix': 'incus-base', 'reference': '6.0.4-2+deb13u6'},
    {'release': '13.0', 'prefix': 'incus-client', 'reference': '6.0.4-2+deb13u6'},
    {'release': '13.0', 'prefix': 'incus-extra', 'reference': '6.0.4-2+deb13u6'}
];

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, 'golang-github-lxc-incus-dev / incus / incus-agent / incus-base / etc');
}