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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2024-3854.NASL
HistoryJun 12, 2024 - 12:00 a.m.

RHEL 9 : kernel-rt (RHSA-2024:3854)

2024-06-1200:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
2
rhel 9
kernel-rt
vulnerabilities
security fix
bug fix
kvm
bluetooth
race condition
net/mlx5e

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.9

Confidence

High

EPSS

0.001

Percentile

19.8%

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3854 advisory.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

Security Fix(es):

* kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic     msrs (CVE-2023-5090)

* kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg     (CVE-2023-51779)

* kernel: kvm: Avoid potential UAF in LPI translation cache (CVE-2024-26598)

* kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)

Bug Fix:

* kernel-rt: update RT source tree to the latest RHEL-9.2 ad hoc schedule build (JIRA:RHEL-38545)

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 these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2024:3854. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(200431);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/14");

  script_cve_id(
    "CVE-2023-5090",
    "CVE-2023-51779",
    "CVE-2023-52667",
    "CVE-2024-26598"
  );
  script_xref(name:"RHSA", value:"2024:3854");
  script_xref(name:"IAVA", value:"2024-A-0356");

  script_name(english:"RHEL 9 : kernel-rt (RHSA-2024:3854)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for kernel-rt.");
  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-2024:3854 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with
    extremely high determinism requirements.

    Security Fix(es):

    * kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic
    msrs (CVE-2023-5090)

    * kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg
    (CVE-2023-51779)

    * kernel: kvm: Avoid potential UAF in LPI translation cache (CVE-2024-26598)

    * kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)

    Bug Fix:

    * kernel-rt: update RT source tree to the latest RHEL-9.2 ad hoc schedule build (JIRA:RHEL-38545)

    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 these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2248122");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2256822");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2265801");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2281350");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_3854.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?817a13fb");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2024:3854");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL kernel-rt package based on the guidance in RHSA-2024:3854.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-26598");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(416, 755);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/11/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/06/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:9.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra");
  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:"Red Hat Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 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: '9.2')) audit(AUDIT_OS_NOT, 'Red Hat 9.2', '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-2023-5090', 'CVE-2023-51779', 'CVE-2023-52667', 'CVE-2024-26598');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2024:3854');
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

var constraints = [
  {
    'repo_relative_urls': [
      'content/e4s/rhel9/9.2/x86_64/nfv/debug',
      'content/e4s/rhel9/9.2/x86_64/nfv/os',
      'content/e4s/rhel9/9.2/x86_64/nfv/source/SRPMS',
      'content/e4s/rhel9/9.2/x86_64/rt/debug',
      'content/e4s/rhel9/9.2/x86_64/rt/os',
      'content/e4s/rhel9/9.2/x86_64/rt/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'kernel-rt-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-core-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-core-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-devel-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-kvm-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-modules-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-modules-core-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-debug-modules-extra-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-devel-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-kvm-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-modules-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-modules-core-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-rt-modules-extra-5.14.0-284.69.1.rt14.354.el9_2', 'sp':'2', 'cpu':'x86_64', 'release':'9', '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 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_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, 'kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc');
}
VendorProductVersionCPE
redhatenterprise_linuxkernel-rtp-cpe:/a:redhat:enterprise_linux:kernel-rt
redhatenterprise_linuxkernel-rt-debug-corep-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core
redhatenterprise_linuxkernel-rt-debug-develp-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel
redhatrhel_eus9.2cpe:/o:redhat:rhel_eus:9.2
redhatenterprise_linuxkernel-rt-develp-cpe:/a:redhat:enterprise_linux:kernel-rt-devel
redhatenterprise_linuxkernel-rt-corep-cpe:/a:redhat:enterprise_linux:kernel-rt-core
redhatenterprise_linuxkernel-rt-kvmp-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm
redhatenterprise_linuxkernel-rt-modulesp-cpe:/a:redhat:enterprise_linux:kernel-rt-modules
redhatenterprise_linuxkernel-rt-debug-modules-extrap-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra
redhatenterprise_linuxkernel-rt-modules-extrap-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra
Rows per page:
1-10 of 151

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.9

Confidence

High

EPSS

0.001

Percentile

19.8%