Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : OpenSSL vulnerabilities (USN-7786-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-7786-1. 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(266334);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/24");

  script_cve_id("CVE-2025-9230", "CVE-2025-9231", "CVE-2025-9232");
  script_xref(name:"USN", value:"7786-1");
  script_xref(name:"IAVA", value:"2025-A-0716-S");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : OpenSSL vulnerabilities (USN-7786-1)");

  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 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 host has packages
installed that are affected by multiple vulnerabilities as referenced in the USN-7786-1 advisory.

    Stanislav Fort discovered that OpenSSL incorrectly handled memory when trying to decrypt CMS messages
    encrypted with password-based encryption. An attacker could possibly use this issue to cause a denial of
    service or execute arbitrary code. (CVE-2025-9230)

    Stanislav Fort discovered that OpenSSL had a timing side-channel in SM2 signature computations on ARM
    platforms. A remote attacker could possibly use this issue to recover private data. This issue only
    affected Ubuntu 25.04. (CVE-2025-9231)

    Stanislav Fort discovered that OpenSSL incorrectly handled memory during HTTP requests when no_proxy
    environment variable is set. An attacker could possibly use this issue to cause a denial of service. This
    issue only affected Ubuntu 25.04. (CVE-2025-9232)

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-7786-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C");
  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:L/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-9230");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2025-9231");

  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:"2025/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  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:25.04");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libssl-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libssl1.0-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libssl1.0.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libssl1.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libssl3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libssl3t64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openssl-provider-legacy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openssl1.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"Ubuntu Security Notice (C) 2025-2026 Canonical, Inc. / NASL script (C) 2025-2026 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 (! ('14.04' >< os_release || '16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release || '24.04' >< os_release || '25.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04 / 18.04 / 20.04 / 22.04 / 24.04 / 25.04', '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 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': '14.04', 'pkgname': 'libssl-dev', 'pkgver': '1.0.1f-1ubuntu2.27+esm11', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '14.04', 'pkgname': 'libssl1.0.0', 'pkgver': '1.0.1f-1ubuntu2.27+esm11', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '14.04', 'pkgname': 'openssl', 'pkgver': '1.0.1f-1ubuntu2.27+esm11', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '16.04', 'pkgname': 'libssl-dev', 'pkgver': '1.0.2g-1ubuntu4.20+esm13', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '16.04', 'pkgname': 'libssl1.0.0', 'pkgver': '1.0.2g-1ubuntu4.20+esm13', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '16.04', 'pkgname': 'openssl', 'pkgver': '1.0.2g-1ubuntu4.20+esm13', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '18.04', 'pkgname': 'libssl-dev', 'pkgver': '1.1.1-1ubuntu2.1~18.04.23+esm6', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '18.04', 'pkgname': 'libssl1.0-dev', 'pkgver': '1.0.2n-1ubuntu5.13+esm2', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '18.04', 'pkgname': 'libssl1.0.0', 'pkgver': '1.0.2n-1ubuntu5.13+esm2', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '18.04', 'pkgname': 'libssl1.1', 'pkgver': '1.1.1-1ubuntu2.1~18.04.23+esm6', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '18.04', 'pkgname': 'openssl', 'pkgver': '1.1.1-1ubuntu2.1~18.04.23+esm6', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '18.04', 'pkgname': 'openssl1.0', 'pkgver': '1.0.2n-1ubuntu5.13+esm2', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '20.04', 'pkgname': 'libssl-dev', 'pkgver': '1.1.1f-1ubuntu2.24+esm1', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '20.04', 'pkgname': 'libssl1.1', 'pkgver': '1.1.1f-1ubuntu2.24+esm1', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '20.04', 'pkgname': 'openssl', 'pkgver': '1.1.1f-1ubuntu2.24+esm1', 'ubuntu_pro': TRUE, 'cves': ['CVE-2025-9230']},
    {'osver': '22.04', 'pkgname': 'libssl-dev', 'pkgver': '3.0.2-0ubuntu1.20', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230']},
    {'osver': '22.04', 'pkgname': 'libssl3', 'pkgver': '3.0.2-0ubuntu1.20', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230']},
    {'osver': '22.04', 'pkgname': 'openssl', 'pkgver': '3.0.2-0ubuntu1.20', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230']},
    {'osver': '24.04', 'pkgname': 'libssl-dev', 'pkgver': '3.0.13-0ubuntu3.6', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230']},
    {'osver': '24.04', 'pkgname': 'libssl3t64', 'pkgver': '3.0.13-0ubuntu3.6', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230']},
    {'osver': '24.04', 'pkgname': 'openssl', 'pkgver': '3.0.13-0ubuntu3.6', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230']},
    {'osver': '25.04', 'pkgname': 'libssl-dev', 'pkgver': '3.4.1-1ubuntu4', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230', 'CVE-2025-9231', 'CVE-2025-9232']},
    {'osver': '25.04', 'pkgname': 'libssl3t64', 'pkgver': '3.4.1-1ubuntu4', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230', 'CVE-2025-9231', 'CVE-2025-9232']},
    {'osver': '25.04', 'pkgname': 'openssl', 'pkgver': '3.4.1-1ubuntu4', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230', 'CVE-2025-9231', 'CVE-2025-9232']},
    {'osver': '25.04', 'pkgname': 'openssl-provider-legacy', 'pkgver': '3.4.1-1ubuntu4', 'ubuntu_pro': FALSE, 'cves': ['CVE-2025-9230', 'CVE-2025-9231', 'CVE-2025-9232']}
];

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_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, 'libssl-dev / libssl1.0-dev / libssl1.0.0 / libssl1.1 / libssl3 / etc');
}