Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : Roundcube Webmail vulnerabilities (USN-8223-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8223-1. 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(311109);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id(
    "CVE-2019-15237",
    "CVE-2024-38356",
    "CVE-2024-38357",
    "CVE-2024-42008",
    "CVE-2024-42010",
    "CVE-2026-25916",
    "CVE-2026-26079"
  );
  script_xref(name:"IAVA", value:"2024-A-0470-S");
  script_xref(name:"IAVA", value:"2026-A-0159-S");
  script_xref(name:"USN", value:"8223-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : Roundcube Webmail vulnerabilities (USN-8223-1)");

  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 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are
affected by multiple vulnerabilities as referenced in the USN-8223-1 advisory.

    It was discovered that Roundcube Webmail mishandled Punycode xn-- domain names. An attacker could possibly
    use this issue to cause a homograph attack. (CVE-2019-15237)

    It was discovered that Roundcube Webmail did not properly sanitize certain attributes when handling CSS
    within HTML messages and certain SVG attributes. An attacker could possibly use this issue to cause a
    cross-site scripting attack. (CVE-2024-38356, CVE-2024-38357)

    It was discovered that Roundcube Webmail did not properly sanitize certain HTML attributes when rendering
    e-mail messages. An attacker could possibly use this issue to cause a cross-site scripting attack.
    (CVE-2024-42008)

    It was discovered that Roundcube Webmail did not properly filter certain CSS token sequences within
    rendered e-mail messages. An attacker could possibly use this issue to obtain sensitive information.
    (CVE-2024-42010)

    It was discovered that Roundcube Webmail did not properly treat an SVG tag as an image source within its
    HTML sanitizer. An attacker could possibly use this issue to bypass remote image blocking to track email
    open actions or potentially bypass access control. (CVE-2026-25916)

    It was discovered that Roundcube Webmail did not properly handle comments within Cascading Style Sheets
    (CSS). An attacker could possibly use this issue to perform a CSS injection attack. (CVE-2026-26079)

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-8223-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  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:N/UI:R/S:C/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-15237");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-42008");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2024-38357");

  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:"2019/08/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:"p-cpe:/a:canonical:ubuntu_linux:roundcube");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:roundcube-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:roundcube-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:roundcube-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:roundcube-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:roundcube-sqlite3");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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_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 (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release || '24.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04 / 22.04 / 24.04', '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': '16.04', 'pkgname': 'roundcube', 'pkgver': '1.2~beta+dfsg.1-0ubuntu1+esm8', 'ubuntu_pro': TRUE},
    {'osver': '16.04', 'pkgname': 'roundcube-core', 'pkgver': '1.2~beta+dfsg.1-0ubuntu1+esm8', 'ubuntu_pro': TRUE},
    {'osver': '16.04', 'pkgname': 'roundcube-mysql', 'pkgver': '1.2~beta+dfsg.1-0ubuntu1+esm8', 'ubuntu_pro': TRUE},
    {'osver': '16.04', 'pkgname': 'roundcube-pgsql', 'pkgver': '1.2~beta+dfsg.1-0ubuntu1+esm8', 'ubuntu_pro': TRUE},
    {'osver': '16.04', 'pkgname': 'roundcube-plugins', 'pkgver': '1.2~beta+dfsg.1-0ubuntu1+esm8', 'ubuntu_pro': TRUE},
    {'osver': '16.04', 'pkgname': 'roundcube-sqlite3', 'pkgver': '1.2~beta+dfsg.1-0ubuntu1+esm8', 'ubuntu_pro': TRUE},
    {'osver': '18.04', 'pkgname': 'roundcube', 'pkgver': '1.3.6+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '18.04', 'pkgname': 'roundcube-core', 'pkgver': '1.3.6+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '18.04', 'pkgname': 'roundcube-mysql', 'pkgver': '1.3.6+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '18.04', 'pkgname': 'roundcube-pgsql', 'pkgver': '1.3.6+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '18.04', 'pkgname': 'roundcube-plugins', 'pkgver': '1.3.6+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '18.04', 'pkgname': 'roundcube-sqlite3', 'pkgver': '1.3.6+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'roundcube', 'pkgver': '1.4.3+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'roundcube-core', 'pkgver': '1.4.3+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'roundcube-mysql', 'pkgver': '1.4.3+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'roundcube-pgsql', 'pkgver': '1.4.3+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'roundcube-plugins', 'pkgver': '1.4.3+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'roundcube-sqlite3', 'pkgver': '1.4.3+dfsg.1-1ubuntu0.1~esm8', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'roundcube', 'pkgver': '1.5.0+dfsg.1-2ubuntu0.1~esm6', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'roundcube-core', 'pkgver': '1.5.0+dfsg.1-2ubuntu0.1~esm6', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'roundcube-mysql', 'pkgver': '1.5.0+dfsg.1-2ubuntu0.1~esm6', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'roundcube-pgsql', 'pkgver': '1.5.0+dfsg.1-2ubuntu0.1~esm6', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'roundcube-plugins', 'pkgver': '1.5.0+dfsg.1-2ubuntu0.1~esm6', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'roundcube-sqlite3', 'pkgver': '1.5.0+dfsg.1-2ubuntu0.1~esm6', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'roundcube', 'pkgver': '1.6.6+dfsg-2ubuntu0.1+esm3', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'roundcube-core', 'pkgver': '1.6.6+dfsg-2ubuntu0.1+esm3', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'roundcube-mysql', 'pkgver': '1.6.6+dfsg-2ubuntu0.1+esm3', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'roundcube-pgsql', 'pkgver': '1.6.6+dfsg-2ubuntu0.1+esm3', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'roundcube-plugins', 'pkgver': '1.6.6+dfsg-2ubuntu0.1+esm3', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'roundcube-sqlite3', 'pkgver': '1.6.6+dfsg-2ubuntu0.1+esm3', 'ubuntu_pro': TRUE}
];

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, 'roundcube / roundcube-core / roundcube-mysql / roundcube-pgsql / etc');
}