Ubuntu 24.10 : CRaC JDK 21 vulnerabilities (USN-7339-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-7339-1. 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(232564);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/03/11");

  script_cve_id(
    "CVE-2024-21208",
    "CVE-2024-21210",
    "CVE-2024-21217",
    "CVE-2024-21235",
    "CVE-2025-21502"
  );
  script_xref(name:"USN", value:"7339-1");

  script_name(english:"Ubuntu 24.10 : CRaC JDK 21 vulnerabilities (USN-7339-1)");

  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 24.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the
USN-7339-1 advisory.

    Andy Boothe discovered that the Networking component of CRaC JDK 21 did not properly handle access under
    certain circumstances. An unauthenticated attacker could possibly use this issue to cause a denial of
    service. (CVE-2024-21208)

    It was discovered that the Hotspot component of CRaC JDK 21 did not properly handle vectorization under
    certain circumstances. An unauthenticated attacker could possibly use this issue to access unauthorized
    resources and expose sensitive information. (CVE-2024-21210, CVE-2024-21235)

    It was discovered that the Serialization component of CRaC JDK 21 did not properly handle deserialization
    under certain circumstances. An unauthenticated attacker could possibly use this issue to cause a denial
    of service. (CVE-2024-21217)

    It was discovered that the Hotspot component of CRaC JDK 21 did not properly handle API access under
    certain circumstances. An unauthenticated attacker could possibly use this issue to access unauthorized
    resources and expose sensitive information. (CVE-2025-21502)

    In addition to security fixes, the updated packages contain bug fixes, new features, and possibly
    incompatible changes.

    Please see the following for more information:
    https://openjdk.org/groups/vulnerability/advisories/2024-10-15
    https://openjdk.org/groups/vulnerability/advisories/2025-01-21

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-7339-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/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:H/PR:N/UI:N/S:U/C:L/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-2024-21235");

  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:"2024/10/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/03/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:openjdk-21-crac-demo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jdk-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jre-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jre-zero");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-testsupport");
  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");
  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 (! ('24.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 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 pkgs = [
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-demo', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-jdk', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-jdk-headless', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-jre', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-jre-headless', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-jre-zero', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-source', 'pkgver': '21.0.6+7-0ubuntu1~24.10'},
    {'osver': '24.10', 'pkgname': 'openjdk-21-crac-testsupport', 'pkgver': '21.0.6+7-0ubuntu1~24.10'}
];

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 (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  var extra = '';
  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, 'openjdk-21-crac-demo / openjdk-21-crac-jdk / etc');
}