RHEL 7 : libblockdev (RHSA-2025:10796)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2025:10796. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(241703);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/10");

  script_cve_id("CVE-2025-6019");
  script_xref(name:"RHSA", value:"2025:10796");

  script_name(english:"RHEL 7 : libblockdev (RHSA-2025:10796)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for libblockdev.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2025:10796 advisory.

    The libblockdev packages provide a C library with GObject introspection support used for low-level
    operations on block devices. The library serves as a thin wrapper around plug-ins for specific
    functionality, such as LVM, Btrfs, LUKS, or MD RAID.

    Security Fix(es):

    * libblockdev: LPE from allow_active to root in libblockdev via udisks (CVE-2025-6019)

    For more details about the security issue(s), including the impact, a CVSS
    score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References
    section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
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  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2025-6019");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_10796.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?94ab2274");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2025:10796");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL libblockdev package based on the guidance in RHSA-2025:10796.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:S/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:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
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  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
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  script_cwe_id(250);
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  script_set_attribute(attribute:"vuln_publication_date", value:"2025/06/18");
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  exit(0);
}


include('rpm2.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'Red Hat' >!< os_product) audit(AUDIT_OS_NOT, 'Red Hat');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
if (!rhel_check_release(operator: 'ge', os_version: os_version, rhel_version: '7')) audit(AUDIT_OS_NOT, 'Red Hat 7.x', 'Red Hat ' + os_version);

if (!get_kb_item('Host/RedHat/rpm-list')) 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'release': '7',
    'repo_relative_urls': [
      'content/els/rhel/power-le/7/7Server/ppc64le/debug',
      'content/els/rhel/power-le/7/7Server/ppc64le/optional/debug',
      'content/els/rhel/power-le/7/7Server/ppc64le/optional/os',
      'content/els/rhel/power-le/7/7Server/ppc64le/optional/source/SRPMS',
      'content/els/rhel/power-le/7/7Server/ppc64le/os',
      'content/els/rhel/power-le/7/7Server/ppc64le/source/SRPMS',
      'content/els/rhel/power/7/7Server/ppc64/debug',
      'content/els/rhel/power/7/7Server/ppc64/optional/debug',
      'content/els/rhel/power/7/7Server/ppc64/optional/os',
      'content/els/rhel/power/7/7Server/ppc64/optional/source/SRPMS',
      'content/els/rhel/power/7/7Server/ppc64/os',
      'content/els/rhel/power/7/7Server/ppc64/source/SRPMS',
      'content/els/rhel/server/7/7Server/x86_64/debug',
      'content/els/rhel/server/7/7Server/x86_64/optional/debug',
      'content/els/rhel/server/7/7Server/x86_64/optional/os',
      'content/els/rhel/server/7/7Server/x86_64/optional/source/SRPMS',
      'content/els/rhel/server/7/7Server/x86_64/os',
      'content/els/rhel/server/7/7Server/x86_64/source/SRPMS',
      'content/els/rhel/system-z/7/7Server/s390x/debug',
      'content/els/rhel/system-z/7/7Server/s390x/optional/debug',
      'content/els/rhel/system-z/7/7Server/s390x/optional/os',
      'content/els/rhel/system-z/7/7Server/s390x/optional/source/SRPMS',
      'content/els/rhel/system-z/7/7Server/s390x/os',
      'content/els/rhel/system-z/7/7Server/s390x/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'libblockdev-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-btrfs-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'libblockdev-crypto-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-crypto-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'libblockdev-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'libblockdev-dm-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'libblockdev-dm-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-dm-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'libblockdev-fs-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-kbd-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'libblockdev-mpath-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-mpath-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-mpath-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-nvdimm-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-part-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-plugins-all-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-plugins-all-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-plugins-all-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-plugins-all-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-s390-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-s390-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-swap-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-devel-2.18-5.el7_9.1', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-devel-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-devel-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-devel-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-utils-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-vdo-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libblockdev-vdo-devel-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python2-blockdev-2.18-5.el7_9.1', 'cpu':'ppc64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python2-blockdev-2.18-5.el7_9.1', 'cpu':'ppc64le', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python2-blockdev-2.18-5.el7_9.1', 'cpu':'s390x', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python2-blockdev-2.18-5.el7_9.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var repo_relative_urls;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }

  if (!empty_or_null(constraint['repo_relative_urls'])) repo_relative_urls = constraint['repo_relative_urls'];

  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(rpm:exists_check))) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libblockdev / libblockdev-btrfs / libblockdev-btrfs-devel / etc');
}