RHEL 8 : kernel (RHSA-2024:0724)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2024:0724. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(190110);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id(
    "CVE-2021-3640",
    "CVE-2021-4204",
    "CVE-2021-30002",
    "CVE-2021-34866",
    "CVE-2022-0168",
    "CVE-2022-0500",
    "CVE-2022-0617",
    "CVE-2022-1462",
    "CVE-2022-2078",
    "CVE-2022-2586",
    "CVE-2022-2663",
    "CVE-2022-3524",
    "CVE-2022-3545",
    "CVE-2022-3566",
    "CVE-2022-3594",
    "CVE-2022-3619",
    "CVE-2022-3623",
    "CVE-2022-3707",
    "CVE-2022-21499",
    "CVE-2022-23222",
    "CVE-2022-24448",
    "CVE-2022-25265",
    "CVE-2022-28388",
    "CVE-2022-28390",
    "CVE-2022-28893",
    "CVE-2022-36946",
    "CVE-2022-39189",
    "CVE-2022-45887",
    "CVE-2023-0458",
    "CVE-2023-1075",
    "CVE-2023-1252",
    "CVE-2023-1989",
    "CVE-2023-2166",
    "CVE-2023-2176",
    "CVE-2023-3141",
    "CVE-2023-4132",
    "CVE-2023-4921",
    "CVE-2023-5717",
    "CVE-2023-6356",
    "CVE-2023-6535",
    "CVE-2023-6536",
    "CVE-2023-6610",
    "CVE-2023-6817",
    "CVE-2023-6932",
    "CVE-2023-20569",
    "CVE-2023-23455",
    "CVE-2023-28328",
    "CVE-2023-28772",
    "CVE-2023-35825",
    "CVE-2023-40283",
    "CVE-2023-45862",
    "CVE-2023-46813",
    "CVE-2024-0646"
  );
  script_xref(name:"RHSA", value:"2024:0724");

  script_name(english:"RHEL 8 : kernel (RHSA-2024:0724)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for kernel.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2024:0724 advisory.

  - kernel: use-after-free vulnerability in function sco_sock_sendmsg() (CVE-2021-3640)

  - kernel: improper input validation may lead to privilege escalation (CVE-2021-4204)

  - kernel: memory leak for large arguments in video_usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c
    (CVE-2021-30002)

  - kernel: eBPF verification flaw (CVE-2021-34866)

  - kernel: smb2_ioctl_query_info NULL pointer dereference (CVE-2022-0168)

  - kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges
    (CVE-2022-0500)

  - kernel: NULL pointer dereference in udf_expand_file_adinicbdue() during writeback (CVE-2022-0617)

  - kernel: possible race condition in drivers/tty/tty_buffers.c (CVE-2022-1462)

  - kernel: buffer overflow in nft_set_desc_concat_parse() (CVE-2022-2078)

  - kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation
    (CVE-2022-2586)

  - kernel: netfilter: nf_conntrack_irc message handling issue (CVE-2022-2663)

  - kernel: memory leak in ipv6_renew_options() (CVE-2022-3524)

  - kernel: nfp: use-after-free in area_cache_get() (CVE-2022-3545)

  - kernel: data races around icsk->icsk_af_ops in do_ipv6_setsockopt (CVE-2022-3566)

  - kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594)

  - kernel: memory leak in l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c (CVE-2022-3619)

  - kernel: denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry (CVE-2022-3623)

  - kernel: Double-free in split_2MB_gtt_entry when function intel_gvt_dma_map_guest_page failed
    (CVE-2022-3707)

  - kernel: possible to use the debugger to write zero into a location of choice (CVE-2022-21499)

  - kernel: local privileges escalation in kernel/bpf/verifier.c (CVE-2022-23222)

  - kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR (CVE-2022-24448)

  - kernel: Executable Space Protection Bypass (CVE-2022-25265)

  - kernel: double free in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c (CVE-2022-28388)

  - kernel: double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c (CVE-2022-28390)

  - kernel: use after free in SUNRPC subsystem (CVE-2022-28893)

  - kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)

  - kernel: TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning
    (CVE-2022-39189)

  - kernel: memory leak in ttusb_dec_exit_dvb() in media/usb/ttusb-dec/ttusb_dec.c (CVE-2022-45887)

  - kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c (CVE-2023-0458)

  - kernel: net/tls: tls_is_tx_ready() checked list_entry (CVE-2023-1075)

  - kernel: ovl: fix use after free in struct ovl_aio_req (CVE-2023-1252)

  - kernel: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989)

  - kernel: NULL pointer dereference in can_rcv_filter (CVE-2023-2166)

  - kernel: Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)

  - kernel: Use after free bug in r592_remove (CVE-2023-3141)

  - kernel: smsusb: use-after-free caused by do_submit_urb() (CVE-2023-4132)

  - kernel: use-after-free in sch_qfq network scheduler (CVE-2023-4921)

  - kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller
    than its child's sibling_list (CVE-2023-5717)

  - kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356)

  - kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535)

  - kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536)

  - kernel: OOB Access in smb2_dump_detail (CVE-2023-6610)

  - kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)

  - kernel: use-after-free in IPv4 IGMP (CVE-2023-6932)

  - hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)

  - Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion (CVE-2023-23455)

  - kernel: Denial of service issue in az6027 driver in drivers/media/usb/dev-usb/az6027.c (CVE-2023-28328)

  - kernel: lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow (CVE-2023-28772)

  - kernel: r592: race condition leading to use-after-free in r592_remove() (CVE-2023-35825)

  - kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)

  - kernel: drivers/usb/storage/ene_ub6250.c (CVE-2023-45862)

  - kernel: SEV-ES local priv escalation (CVE-2023-46813)

  - kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination
    (CVE-2024-0646)

Note that Nessus has not tested for these issues 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/errata/RHSA-2024:0724");
  script_set_attribute(attribute:"solution", value:
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  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
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  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-28893");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-0646");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
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  script_set_attribute(attribute:"vuln_publication_date", value:"2021/04/02");
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}


include('rpm.inc');
include('rhel.inc');
include('ksplice.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release_list(operator: 'ge', os_version: os_ver, rhel_versions: ['8','8.6'])) audit(AUDIT_OS_NOT, 'Red Hat 8.x / 8.x', 'Red Hat ' + os_ver);

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);

if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
  rm_kb_item(name:'Host/uptrack-uname-r');
  var cve_list = make_list('CVE-2021-3640', 'CVE-2021-4204', 'CVE-2021-30002', 'CVE-2021-34866', 'CVE-2022-0168', 'CVE-2022-0500', 'CVE-2022-0617', 'CVE-2022-1462', 'CVE-2022-2078', 'CVE-2022-2586', 'CVE-2022-2663', 'CVE-2022-3524', 'CVE-2022-3545', 'CVE-2022-3566', 'CVE-2022-3594', 'CVE-2022-3619', 'CVE-2022-3623', 'CVE-2022-3707', 'CVE-2022-21499', 'CVE-2022-23222', 'CVE-2022-24448', 'CVE-2022-25265', 'CVE-2022-28388', 'CVE-2022-28390', 'CVE-2022-28893', 'CVE-2022-36946', 'CVE-2022-39189', 'CVE-2022-45887', 'CVE-2023-0458', 'CVE-2023-1075', 'CVE-2023-1252', 'CVE-2023-1989', 'CVE-2023-2166', 'CVE-2023-2176', 'CVE-2023-3141', 'CVE-2023-4132', 'CVE-2023-4921', 'CVE-2023-5717', 'CVE-2023-6356', 'CVE-2023-6535', 'CVE-2023-6536', 'CVE-2023-6610', 'CVE-2023-6817', 'CVE-2023-6932', 'CVE-2023-20569', 'CVE-2023-23455', 'CVE-2023-28328', 'CVE-2023-28772', 'CVE-2023-35825', 'CVE-2023-40283', 'CVE-2023-45862', 'CVE-2023-46813', 'CVE-2024-0646');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2024:0724');
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

var constraints = [
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      'content/eus/rhel8/8.6/ppc64le/baseos/debug',
      'content/eus/rhel8/8.6/ppc64le/baseos/os',
      'content/eus/rhel8/8.6/ppc64le/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/ppc64le/codeready-builder/debug',
      'content/eus/rhel8/8.6/ppc64le/codeready-builder/os',
      'content/eus/rhel8/8.6/ppc64le/codeready-builder/source/SRPMS',
      'content/eus/rhel8/8.6/s390x/baseos/debug',
      'content/eus/rhel8/8.6/s390x/baseos/os',
      'content/eus/rhel8/8.6/s390x/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/s390x/codeready-builder/debug',
      'content/eus/rhel8/8.6/s390x/codeready-builder/os',
      'content/eus/rhel8/8.6/s390x/codeready-builder/source/SRPMS',
      'content/eus/rhel8/8.6/x86_64/baseos/debug',
      'content/eus/rhel8/8.6/x86_64/baseos/os',
      'content/eus/rhel8/8.6/x86_64/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/x86_64/codeready-builder/debug',
      'content/eus/rhel8/8.6/x86_64/codeready-builder/os',
      'content/eus/rhel8/8.6/x86_64/codeready-builder/source/SRPMS',
      'content/tus/rhel8/8.6/x86_64/baseos/debug',
      'content/tus/rhel8/8.6/x86_64/baseos/os',
      'content/tus/rhel8/8.6/x86_64/baseos/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'bpftool-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-core-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-cross-headers-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-core-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-extra-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-extra-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'kernel-tools-libs-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'ppc64le', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'kernel-tools-libs-devel-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-zfcpdump-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-zfcpdump-core-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'kernel-zfcpdump-modules-extra-4.18.0-372.91.1.el8_6', 'sp':'6', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-perf-4.18.0-372.91.1.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
  },
  {
    'repo_relative_urls': [
      'content/dist/layered/rhel8/ppc64le/rhv-mgmt-agent/4/debug',
      'content/dist/layered/rhel8/ppc64le/rhv-mgmt-agent/4/os',
      'content/dist/layered/rhel8/ppc64le/rhv-mgmt-agent/4/source/SRPMS',
      'content/dist/layered/rhel8/ppc64le/rhv-tools/4/debug',
      'content/dist/layered/rhel8/ppc64le/rhv-tools/4/os',
      'content/dist/layered/rhel8/ppc64le/rhv-tools/4/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/rhv-mgmt-agent/4/debug',
      'content/dist/layered/rhel8/x86_64/rhv-mgmt-agent/4/os',
      'content/dist/layered/rhel8/x86_64/rhv-mgmt-agent/4/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/rhv-tools/4/debug',
      'content/dist/layered/rhel8/x86_64/rhv-tools/4/os',
      'content/dist/layered/rhel8/x86_64/rhv-tools/4/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/rhvh-build/4/debug',
      'content/dist/layered/rhel8/x86_64/rhvh-build/4/os',
      'content/dist/layered/rhel8/x86_64/rhvh-build/4/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/rhvh/4/debug',
      'content/dist/layered/rhel8/x86_64/rhvh/4/os',
      'content/dist/layered/rhel8/x86_64/rhvh/4/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'bpftool-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-core-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-cross-headers-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-core-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-extra-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'kernel-tools-4.18.0-372.91.1.el8_6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-4.18.0-372.91.1.el8_6', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-4.18.0-372.91.1.el8_6', 'cpu':'ppc64le', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-4.18.0-372.91.1.el8_6', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
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      {'reference':'python3-perf-4.18.0-372.91.1.el8_6', 'release':'8', '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 flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    var reference = NULL;
    var _release = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    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 &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        rpm_check(release:_release, 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_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'bpftool / kernel / kernel-core / kernel-cross-headers / etc');
}