Ubuntu 22.04 LTS / 24.04 LTS / 24.10 : Botan vulnerabilities (USN-7586-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-7586-1. 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(240496);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/06/25");

  script_cve_id(
    "CVE-2024-34702",
    "CVE-2024-34703",
    "CVE-2024-39312",
    "CVE-2024-50382",
    "CVE-2024-50383"
  );
  script_xref(name:"USN", value:"7586-1");

  script_name(english:"Ubuntu 22.04 LTS / 24.04 LTS / 24.10 : Botan vulnerabilities (USN-7586-1)");

  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 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-7586-1 advisory.

    It was discovered that Botan could have compiler dependent operations induced under certain circumstances.
    An attacker could possibly use this issue to cause undefined behavior. (CVE-2024-50382, CVE-2024-50383)

    Bing Shi discovered that Botan did not limit the size of certain inputs when checking primality and name
    constraints. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-34702,
    CVE-2024-34703)

    It was discovered that Botan did not correctly handle conflicting name constraints. An attacker could
    possibly use this issue to bypass authentication. (CVE-2024-39312)

Tenable has extracted the preceding description block directly from the Ubuntu 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://ubuntu.com/security/notices/USN-7586-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-39312");

  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:"2024/06/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/06/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:botan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libbotan-2-19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libbotan-2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-botan");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"Ubuntu Security Notice (C) 2025 Canonical, Inc. / NASL script (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "ubuntu_pro_sub_detect.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 (! ('22.04' >< os_release || '24.04' >< os_release || '24.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04 / 24.04 / 24.10', '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 ubuntu_pro_detected = get_kb_item('Host/Ubuntu/Pro/Services/esm-apps');
ubuntu_pro_detected = !empty_or_null(ubuntu_pro_detected);

var pro_caveat_needed = FALSE;

var pkgs = [
    {'osver': '22.04', 'pkgname': 'botan', 'pkgver': '2.19.1+dfsg-2ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'libbotan-2-19', 'pkgver': '2.19.1+dfsg-2ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'libbotan-2-dev', 'pkgver': '2.19.1+dfsg-2ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'python3-botan', 'pkgver': '2.19.1+dfsg-2ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'botan', 'pkgver': '2.19.3+dfsg-1ubuntu2+esm1', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'libbotan-2-19', 'pkgver': '2.19.3+dfsg-1ubuntu2+esm1', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'libbotan-2-dev', 'pkgver': '2.19.3+dfsg-1ubuntu2+esm1', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'python3-botan', 'pkgver': '2.19.3+dfsg-1ubuntu2+esm1', 'ubuntu_pro': TRUE},
    {'osver': '24.10', 'pkgname': 'botan', 'pkgver': '2.19.3+dfsg-1ubuntu2.1', 'ubuntu_pro': FALSE},
    {'osver': '24.10', 'pkgname': 'libbotan-2-19', 'pkgver': '2.19.3+dfsg-1ubuntu2.1', 'ubuntu_pro': FALSE},
    {'osver': '24.10', 'pkgname': 'libbotan-2-dev', 'pkgver': '2.19.3+dfsg-1ubuntu2.1', 'ubuntu_pro': FALSE},
    {'osver': '24.10', 'pkgname': 'python3-botan', 'pkgver': '2.19.3+dfsg-1ubuntu2.1', 'ubuntu_pro': FALSE}
];

var flag = 0;
foreach var 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 (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  var pro_required = NULL;
  if (!empty_or_null(package_array['ubuntu_pro'])) pro_required = package_array['ubuntu_pro'];
  if (osver && pkgname && pkgver) {
    if (deb_check(release:osver, prefix:pkgname, reference:pkgver, cves:cves)) {
        flag++;
        if (!ubuntu_pro_detected && !pro_caveat_needed) pro_caveat_needed = pro_required;
    }
  }
}

if (flag)
{
  var extra = '';
  if (pro_caveat_needed) {
    extra += 'NOTE: This vulnerability check contains fixes that apply to packages only \n';
    extra += 'available in Ubuntu ESM repositories. Access to these package security updates \n';
    extra += 'require an Ubuntu Pro subscription.\n\n';
  }
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'botan / libbotan-2-19 / libbotan-2-dev / python3-botan');
}