7.8 High
CVSS3
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
7.5 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.7%
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0134 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: use after free in unix_stream_sendpage (CVE-2023-4622)
* kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (CVE-2023-5633)
* kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)
* Kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)
* hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)
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.
Bug Fix(es):
* kernel-rt: update RT source tree to the latest RHEL-8.9.z1 Batch (JIRA:RHEL-17347)
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-2024:0134. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(187878);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id(
"CVE-2022-36402",
"CVE-2023-2162",
"CVE-2023-4622",
"CVE-2023-5633",
"CVE-2023-20569",
"CVE-2023-42753"
);
script_xref(name:"RHSA", value:"2024:0134");
script_name(english:"RHEL 8 : kernel-rt (RHSA-2024:0134)");
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 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2024:0134 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: use after free in unix_stream_sendpage (CVE-2023-4622)
* kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (CVE-2023-5633)
* kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)
* Kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)
* hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)
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.
Bug Fix(es):
* kernel-rt: update RT source tree to the latest RHEL-8.9.z1 Batch (JIRA:RHEL-17347)
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.");
# https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0134.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9096988a");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2024:0134");
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=2187773");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2207625");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2237760");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2239843");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2245663");
script_set_attribute(attribute:"solution", value:
"Update the RHEL kernel-rt package based on the guidance in RHSA-2024:0134.");
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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-5633");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(190, 416, 787);
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/03/17");
script_set_attribute(attribute:"patch_publication_date", value:"2024/01/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
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-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-extra");
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) 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: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 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-2022-36402', 'CVE-2023-2162', 'CVE-2023-4622', 'CVE-2023-5633', 'CVE-2023-20569', 'CVE-2023-42753');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2024:0134');
}
else
{
__rpm_report = ksplice_reporting_text();
}
}
var constraints = [
{
'repo_relative_urls': [
'content/dist/rhel8/8.10/x86_64/nfv/debug',
'content/dist/rhel8/8.10/x86_64/nfv/os',
'content/dist/rhel8/8.10/x86_64/nfv/source/SRPMS',
'content/dist/rhel8/8.10/x86_64/rt/debug',
'content/dist/rhel8/8.10/x86_64/rt/os',
'content/dist/rhel8/8.10/x86_64/rt/source/SRPMS',
'content/dist/rhel8/8.6/x86_64/nfv/debug',
'content/dist/rhel8/8.6/x86_64/nfv/os',
'content/dist/rhel8/8.6/x86_64/nfv/source/SRPMS',
'content/dist/rhel8/8.6/x86_64/rt/debug',
'content/dist/rhel8/8.6/x86_64/rt/os',
'content/dist/rhel8/8.6/x86_64/rt/source/SRPMS',
'content/dist/rhel8/8.8/x86_64/nfv/debug',
'content/dist/rhel8/8.8/x86_64/nfv/os',
'content/dist/rhel8/8.8/x86_64/nfv/source/SRPMS',
'content/dist/rhel8/8.8/x86_64/rt/debug',
'content/dist/rhel8/8.8/x86_64/rt/os',
'content/dist/rhel8/8.8/x86_64/rt/source/SRPMS',
'content/dist/rhel8/8.9/x86_64/nfv/debug',
'content/dist/rhel8/8.9/x86_64/nfv/os',
'content/dist/rhel8/8.9/x86_64/nfv/source/SRPMS',
'content/dist/rhel8/8.9/x86_64/rt/debug',
'content/dist/rhel8/8.9/x86_64/rt/os',
'content/dist/rhel8/8.9/x86_64/rt/source/SRPMS',
'content/dist/rhel8/8/x86_64/nfv/debug',
'content/dist/rhel8/8/x86_64/nfv/os',
'content/dist/rhel8/8/x86_64/nfv/source/SRPMS',
'content/dist/rhel8/8/x86_64/rt/debug',
'content/dist/rhel8/8/x86_64/rt/os',
'content/dist/rhel8/8/x86_64/rt/source/SRPMS'
],
'pkgs': [
{'reference':'kernel-rt-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-core-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-debug-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-debug-core-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-debug-devel-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-debug-kvm-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-debug-modules-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-debug-modules-extra-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-devel-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-kvm-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-modules-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-rt-modules-extra-4.18.0-513.11.1.rt7.313.el8_9', 'cpu':'x86_64', '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_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');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | kernel-rt | p-cpe:/a:redhat:enterprise_linux:kernel-rt |
redhat | enterprise_linux | kernel-rt-debug-core | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core |
redhat | enterprise_linux | kernel-rt-debug-devel | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel |
redhat | enterprise_linux | kernel-rt-devel | p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel |
redhat | enterprise_linux | kernel-rt-kvm | p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm |
redhat | enterprise_linux | kernel-rt-core | p-cpe:/a:redhat:enterprise_linux:kernel-rt-core |
redhat | enterprise_linux | kernel-rt-modules | p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules |
redhat | enterprise_linux | kernel-rt-debug-modules-extra | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra |
redhat | enterprise_linux | kernel-rt-modules-extra | p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra |
redhat | enterprise_linux | kernel-rt-debug | p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36402
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20569
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2162
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42753
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4622
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5633
www.nessus.org/u?9096988a
access.redhat.com/errata/RHSA-2024:0134
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=2187773
bugzilla.redhat.com/show_bug.cgi?id=2207625
bugzilla.redhat.com/show_bug.cgi?id=2237760
bugzilla.redhat.com/show_bug.cgi?id=2239843
bugzilla.redhat.com/show_bug.cgi?id=2245663
7.8 High
CVSS3
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
7.5 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.7%