Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenJDK 21 vulnerabilities (USN-8677-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8677-1. 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(365427);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/13");

  script_cve_id(
    "CVE-2026-46917",
    "CVE-2026-46968",
    "CVE-2026-47010",
    "CVE-2026-47021",
    "CVE-2026-47027",
    "CVE-2026-47059",
    "CVE-2026-47063",
    "CVE-2026-60147"
  );
  script_xref(name:"USN", value:"8677-1");

  script_name(english:"Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenJDK 21 vulnerabilities (USN-8677-1)");

  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 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by
multiple vulnerabilities as referenced in the USN-8677-1 advisory.

    It was discovered that the JSSE component of OpenJDK 21 did not correctly authenticate users. A remote
    attacker could possibly use this issue to read or modify sensitive data. (CVE-2026-46968)

    It was discovered that the JSSE component of OpenJDK 21 did not correctly authorize users. A remote
    attacker could possibly use this issue to cause a denial of service. (CVE-2026-46917)

    It was discovered that the ImageIO component of OpenJDK 21 did not correctly authorize users. A remote
    attacker could possibly use this issue to read or modify sensitive data. (CVE-2026-47010)

    It was discovered that the 2D component of OpenJDK 21 did not correctly authorize users. A remote attacker
    could possibly use this issue to cause a denial of service. (CVE-2026-47021, CVE-2026-47059)

    It was discovered that the Libraries component of OpenJDK 21 did not correctly authorize users. A remote
    attacker could possibly use this issue to cause a denial of service. (CVE-2026-47027)

    It was discovered that the Security component of OpenJDK 21 did not correctly authenticate users. A remote
    attacker could possibly use this issue to read or modify sensitive data. (CVE-2026-60147)

    It was discovered that the Libraries component of OpenJDK 21 did not correctly authenticate users. A
    remote attacker could possibly use this issue to read or modify sensitive data. (CVE-2026-47063)

    It was discovered that the 2D (Little CMS) component of OpenJDK 21 did not correctly handle certain
    integer arithmetic. An attacker could possibly use this issue to cause a denial of service.
    (CVE-2026-41254)

    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/2026-07-21

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-8677-1");
  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:C/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:H/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-2026-47063");

  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:"2026/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  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:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-demo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-jdk-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-jre-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-jre-zero");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-21-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) 2026 Canonical, Inc. / NASL script (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.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 (! ('20.04' >< os_release || '22.04' >< os_release || '24.04' >< os_release || '26.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 20.04 / 22.04 / 24.04 / 26.04', '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': '20.04', 'pkgname': 'openjdk-21-demo', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-jdk', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-jdk-headless', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-jre', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-jre-headless', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-jre-zero', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-source', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-21-testsupport', 'pkgver': '21.0.12+8-1~20.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-demo', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-jdk', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-jdk-headless', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-jre', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-jre-headless', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-jre-zero', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-source', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '22.04', 'pkgname': 'openjdk-21-testsupport', 'pkgver': '21.0.12+8-1~22.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-demo', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-jdk', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-jdk-headless', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-jre', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-jre-headless', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-jre-zero', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-source', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '24.04', 'pkgname': 'openjdk-21-testsupport', 'pkgver': '21.0.12+8-1~24.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-demo', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-jdk', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-jdk-headless', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-jre', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-jre-headless', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-jre-zero', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-source', 'pkgver': '21.0.12+8-1~26.04'},
    {'osver': '26.04', 'pkgname': 'openjdk-21-testsupport', 'pkgver': '21.0.12+8-1~26.04'}
];

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'];
  if (osver && pkgname && pkgver) {
    if (deb_check(release:osver, prefix:pkgname, reference:pkgver, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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-demo / openjdk-21-jdk / openjdk-21-jdk-headless / etc');
}