RHEL 9 : kernel (RHSA-2023:4801)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:4801. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(180239);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id(
    "CVE-2022-1353",
    "CVE-2022-39188",
    "CVE-2023-0458",
    "CVE-2023-3090",
    "CVE-2023-44466",
    "CVE-2023-28466"
  );
  script_xref(name:"RHSA", value:"2023:4801");

  script_name(english:"RHEL 9 : kernel (RHSA-2023:4801)");

  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 9 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2023:4801 advisory.

  - kernel: kernel info leak issue in pfkey_register (CVE-2022-1353)

  - kernel: unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry
    (CVE-2022-39188)

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

  - kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)

  - kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference
    (CVE-2023-28466)

  - kernel: buffer overflow in ceph file net/ceph/messenger_v2.c (CVE-2023-44466)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_4801.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5ce0df9c");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:4801");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2066819");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2130141");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2179000");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2193219");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2218672");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL kernel package based on the guidance in RHSA-2023:4801.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:P");
  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: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");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-1353");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-44466");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(119, 212, 416, 476, 787);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/04/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/29");

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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel");
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  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


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(operator: 'eq', os_version: os_ver, rhel_version: '9.0')) audit(AUDIT_OS_NOT, 'Red Hat 9.0', '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-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2023:4801');
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

var constraints = [
  {
    'repo_relative_urls': [
      'content/e4s/rhel9/9.0/aarch64/appstream/debug',
      'content/e4s/rhel9/9.0/aarch64/appstream/os',
      'content/e4s/rhel9/9.0/aarch64/appstream/source/SRPMS',
      'content/e4s/rhel9/9.0/aarch64/baseos/debug',
      'content/e4s/rhel9/9.0/aarch64/baseos/os',
      'content/e4s/rhel9/9.0/aarch64/baseos/source/SRPMS',
      'content/e4s/rhel9/9.0/ppc64le/appstream/debug',
      'content/e4s/rhel9/9.0/ppc64le/appstream/os',
      'content/e4s/rhel9/9.0/ppc64le/appstream/source/SRPMS',
      'content/e4s/rhel9/9.0/ppc64le/baseos/debug',
      'content/e4s/rhel9/9.0/ppc64le/baseos/os',
      'content/e4s/rhel9/9.0/ppc64le/baseos/source/SRPMS',
      'content/e4s/rhel9/9.0/s390x/appstream/debug',
      'content/e4s/rhel9/9.0/s390x/appstream/os',
      'content/e4s/rhel9/9.0/s390x/appstream/source/SRPMS',
      'content/e4s/rhel9/9.0/s390x/baseos/debug',
      'content/e4s/rhel9/9.0/s390x/baseos/os',
      'content/e4s/rhel9/9.0/s390x/baseos/source/SRPMS',
      'content/e4s/rhel9/9.0/x86_64/appstream/debug',
      'content/e4s/rhel9/9.0/x86_64/appstream/os',
      'content/e4s/rhel9/9.0/x86_64/appstream/source/SRPMS',
      'content/e4s/rhel9/9.0/x86_64/baseos/debug',
      'content/e4s/rhel9/9.0/x86_64/baseos/os',
      'content/e4s/rhel9/9.0/x86_64/baseos/source/SRPMS',
      'content/eus/rhel9/9.0/aarch64/appstream/debug',
      'content/eus/rhel9/9.0/aarch64/appstream/os',
      'content/eus/rhel9/9.0/aarch64/appstream/source/SRPMS',
      'content/eus/rhel9/9.0/aarch64/baseos/debug',
      'content/eus/rhel9/9.0/aarch64/baseos/os',
      'content/eus/rhel9/9.0/aarch64/baseos/source/SRPMS',
      'content/eus/rhel9/9.0/aarch64/codeready-builder/debug',
      'content/eus/rhel9/9.0/aarch64/codeready-builder/os',
      'content/eus/rhel9/9.0/aarch64/codeready-builder/source/SRPMS',
      'content/eus/rhel9/9.0/ppc64le/appstream/debug',
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      'content/eus/rhel9/9.0/s390x/baseos/os',
      'content/eus/rhel9/9.0/s390x/baseos/source/SRPMS',
      'content/eus/rhel9/9.0/s390x/codeready-builder/debug',
      'content/eus/rhel9/9.0/s390x/codeready-builder/os',
      'content/eus/rhel9/9.0/s390x/codeready-builder/source/SRPMS',
      'content/eus/rhel9/9.0/x86_64/appstream/debug',
      'content/eus/rhel9/9.0/x86_64/appstream/os',
      'content/eus/rhel9/9.0/x86_64/appstream/source/SRPMS',
      'content/eus/rhel9/9.0/x86_64/baseos/debug',
      'content/eus/rhel9/9.0/x86_64/baseos/os',
      'content/eus/rhel9/9.0/x86_64/baseos/source/SRPMS',
      'content/eus/rhel9/9.0/x86_64/codeready-builder/debug',
      'content/eus/rhel9/9.0/x86_64/codeready-builder/os',
      'content/eus/rhel9/9.0/x86_64/codeready-builder/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'bpftool-5.14.0-70.70.1.el9_0', 'sp':'0', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'cves':['CVE-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466']},
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      {'reference':'kernel-zfcpdump-devel-matched-5.14.0-70.70.1.el9_0', 'sp':'0', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'cves':['CVE-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466']},
      {'reference':'kernel-zfcpdump-modules-5.14.0-70.70.1.el9_0', 'sp':'0', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'cves':['CVE-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466']},
      {'reference':'kernel-zfcpdump-modules-extra-5.14.0-70.70.1.el9_0', 'sp':'0', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'cves':['CVE-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466']},
      {'reference':'perf-5.14.0-70.70.1.el9_0', 'sp':'0', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'cves':['CVE-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466']},
      {'reference':'python3-perf-5.14.0-70.70.1.el9_0', 'sp':'0', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'cves':['CVE-2022-1353', 'CVE-2022-39188', 'CVE-2023-0458', 'CVE-2023-3090', 'CVE-2023-28466', 'CVE-2023-44466']}
    ]
  }
];

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 subscription_caveat = '\n' +
    'NOTE: This vulnerability check contains fixes that apply to\n' +
    'packages only available in the Red Hat Enterprise Linux\n' +
    'Extended Update Support repository.\n' +
    'Access to this repository requires a paid RHEL subscription.\n';
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = subscription_caveat + rpm_report_get() + redhat_report_repo_caveat();
  else extra = subscription_caveat + rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      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');
}