Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : curl vulnerabilities (USN-8062-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8062-1. 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(300431);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id(
    "CVE-2025-9086",
    "CVE-2025-10148",
    "CVE-2025-11563",
    "CVE-2025-13034",
    "CVE-2025-14017",
    "CVE-2025-14524",
    "CVE-2025-14819",
    "CVE-2025-15079",
    "CVE-2025-15224"
  );
  script_xref(name:"IAVA", value:"2025-A-0657-S");
  script_xref(name:"IAVA", value:"2025-A-0818-S");
  script_xref(name:"USN", value:"8062-1");
  script_xref(name:"IAVA", value:"2026-A-0005-S");

  script_name(english:"Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : curl vulnerabilities (USN-8062-1)");

  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 / 25.10 host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-8062-1 advisory.

    It was discovered that curl incorrectly handled cookies when redirected from secure to insecure
    connections. An attacker could possibly use this issue to cause a denial of service, or obtain sensitive
    information. This issue only affected Ubuntu 25.10. (CVE-2025-9086)

    Calvin Ruocco discovered that curl did not properly handle WebSocket communications under certain
    circumstances. A malicious server could possibly use this issue to poison proxy caches with malicious
    content. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2025-10148)

    Stanislav Fort discovered that wcurl did not properly handle URLs with certain encoded characters. If a
    user were tricked into processing a specially crafted URL, an attacker could possibly use this issue to
    write files outside the intended directory. This issue only affected Ubuntu 25.10. (CVE-2025-11563)

    Stanislav Fort discovered that curl did not properly validate pinned public keys under certain
    circumstances. A remote attacker could possibly use this issue to perform a machine-in-the-middle attack.
    This issue only affected Ubuntu 25.10.(CVE-2025-13034)

    Stanislav Fort discovered that curl did not properly manage TLS options when performing LDAP over TLS
    transfers in multi-threaded environments. Under certain circumstances, certificate verification could be
    unintentionally and unknowingly disabled. (CVE-2025-14017)

    It was discovered that curl incorrectly handled Oauth2 bearer tokens when following redirects. A remote
    attacker could possibly use this issue to obtain authentication credentials. (CVE-2025-14524)

    Stanislav Fort discovered that curl did not properly validate TLS certificates when reusing connections. A
    remote attacker could possibly use this issue to bypass expected certificate verification. This issue only
    affected Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2025-14819)

    Harry Sintonen discovered that curl did not properly validate SSH host keys when performing SSH-based file
    transfers. This issue could lead to unintended bypass of custom known_hosts file. This issue only affected
    Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-15079)

    Harry Sintonen discovered that curl built with libssh did not properly handle authentication when
    performing SSH-based file transfers. This could result in unintended authentication operations. This issue
    only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-15224)

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-8062-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-9086");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2025-14017");

  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:"2025/09/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/02/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/03");

  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:25.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-gnutls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-nss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3t64-gnutls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-gnutls-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-nss-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-openssl-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4t64");
  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");
  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 || '25.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04 / 24.04 / 25.10', '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': '22.04', 'pkgname': 'curl', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '22.04', 'pkgname': 'libcurl3-gnutls', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '22.04', 'pkgname': 'libcurl3-nss', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '22.04', 'pkgname': 'libcurl4', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '22.04', 'pkgname': 'libcurl4-gnutls-dev', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '22.04', 'pkgname': 'libcurl4-nss-dev', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '22.04', 'pkgname': 'libcurl4-openssl-dev', 'pkgver': '7.81.0-1ubuntu1.22', 'cves': ['CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '24.04', 'pkgname': 'curl', 'pkgver': '8.5.0-2ubuntu10.7', 'cves': ['CVE-2025-10148', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '24.04', 'pkgname': 'libcurl3t64-gnutls', 'pkgver': '8.5.0-2ubuntu10.7', 'cves': ['CVE-2025-10148', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '24.04', 'pkgname': 'libcurl4-gnutls-dev', 'pkgver': '8.5.0-2ubuntu10.7', 'cves': ['CVE-2025-10148', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '24.04', 'pkgname': 'libcurl4-openssl-dev', 'pkgver': '8.5.0-2ubuntu10.7', 'cves': ['CVE-2025-10148', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '24.04', 'pkgname': 'libcurl4t64', 'pkgver': '8.5.0-2ubuntu10.7', 'cves': ['CVE-2025-10148', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819', 'CVE-2025-15079', 'CVE-2025-15224']},
    {'osver': '25.10', 'pkgname': 'curl', 'pkgver': '8.14.1-2ubuntu1.1', 'cves': ['CVE-2025-9086', 'CVE-2025-10148', 'CVE-2025-11563', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819']},
    {'osver': '25.10', 'pkgname': 'libcurl3t64-gnutls', 'pkgver': '8.14.1-2ubuntu1.1', 'cves': ['CVE-2025-9086', 'CVE-2025-10148', 'CVE-2025-11563', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819']},
    {'osver': '25.10', 'pkgname': 'libcurl4-gnutls-dev', 'pkgver': '8.14.1-2ubuntu1.1', 'cves': ['CVE-2025-9086', 'CVE-2025-10148', 'CVE-2025-11563', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819']},
    {'osver': '25.10', 'pkgname': 'libcurl4-openssl-dev', 'pkgver': '8.14.1-2ubuntu1.1', 'cves': ['CVE-2025-9086', 'CVE-2025-10148', 'CVE-2025-11563', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819']},
    {'osver': '25.10', 'pkgname': 'libcurl4t64', 'pkgver': '8.14.1-2ubuntu1.1', 'cves': ['CVE-2025-9086', 'CVE-2025-10148', 'CVE-2025-11563', 'CVE-2025-13034', 'CVE-2025-14017', 'CVE-2025-14524', 'CVE-2025-14819']}
];

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, 'curl / libcurl3-gnutls / libcurl3-nss / libcurl3t64-gnutls / etc');
}