The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:0059 advisory.
Note that Nessus has not tested for this issue 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-2023:0059. The text
# itself is copyright (C) Red Hat, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(169882);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/02");
script_cve_id("CVE-2022-2639");
script_xref(name:"RHSA", value:"2023:0059");
script_name(english:"RHEL 8 : kpatch-patch (RHSA-2023:0059)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2023:0059 advisory.
- kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)
Note that Nessus has not tested for this issue 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/cve/CVE-2022-2639");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:0059");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/2084479");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
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:H/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:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-2639");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_cwe_id(192, 787);
script_set_attribute(attribute:"vuln_publication_date", value:"2022/06/04");
script_set_attribute(attribute:"patch_publication_date", value:"2023/01/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/01/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_e4s:8.1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_70_1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_74_1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_76_1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_77_1");
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 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.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');
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: '8.1')) audit(AUDIT_OS_NOT, 'Red Hat 8.1', '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);
var uname_r = get_kb_item("Host/uname-r");
if (empty_or_null(uname_r)) audit(AUDIT_UNKNOWN_APP_VER, "kernel");
var kernel_live_checks = [
{
'repo_relative_urls': [
'content/e4s/rhel8/8.1/ppc64le/appstream/debug',
'content/e4s/rhel8/8.1/ppc64le/appstream/os',
'content/e4s/rhel8/8.1/ppc64le/appstream/source/SRPMS',
'content/e4s/rhel8/8.1/ppc64le/baseos/debug',
'content/e4s/rhel8/8.1/ppc64le/baseos/os',
'content/e4s/rhel8/8.1/ppc64le/baseos/source/SRPMS',
'content/e4s/rhel8/8.1/ppc64le/highavailability/debug',
'content/e4s/rhel8/8.1/ppc64le/highavailability/os',
'content/e4s/rhel8/8.1/ppc64le/highavailability/source/SRPMS',
'content/e4s/rhel8/8.1/ppc64le/sap-solutions/debug',
'content/e4s/rhel8/8.1/ppc64le/sap-solutions/os',
'content/e4s/rhel8/8.1/ppc64le/sap-solutions/source/SRPMS',
'content/e4s/rhel8/8.1/ppc64le/sap/debug',
'content/e4s/rhel8/8.1/ppc64le/sap/os',
'content/e4s/rhel8/8.1/ppc64le/sap/source/SRPMS',
'content/e4s/rhel8/8.1/x86_64/appstream/debug',
'content/e4s/rhel8/8.1/x86_64/appstream/os',
'content/e4s/rhel8/8.1/x86_64/appstream/source/SRPMS',
'content/e4s/rhel8/8.1/x86_64/baseos/debug',
'content/e4s/rhel8/8.1/x86_64/baseos/os',
'content/e4s/rhel8/8.1/x86_64/baseos/source/SRPMS',
'content/e4s/rhel8/8.1/x86_64/highavailability/debug',
'content/e4s/rhel8/8.1/x86_64/highavailability/os',
'content/e4s/rhel8/8.1/x86_64/highavailability/source/SRPMS',
'content/e4s/rhel8/8.1/x86_64/sap-solutions/debug',
'content/e4s/rhel8/8.1/x86_64/sap-solutions/os',
'content/e4s/rhel8/8.1/x86_64/sap-solutions/source/SRPMS',
'content/e4s/rhel8/8.1/x86_64/sap/debug',
'content/e4s/rhel8/8.1/x86_64/sap/os',
'content/e4s/rhel8/8.1/x86_64/sap/source/SRPMS'
],
'kernels': {
'4.18.0-147.70.1.el8_1.ppc64le': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_70_1-1-2.el8_1', 'sp':'1', 'cpu':'ppc64le', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.70.1.el8_1.x86_64': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_70_1-1-2.el8_1', 'sp':'1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.74.1.el8_1.ppc64le': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_74_1-1-2.el8_1', 'sp':'1', 'cpu':'ppc64le', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.74.1.el8_1.x86_64': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_74_1-1-2.el8_1', 'sp':'1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.76.1.el8_1.ppc64le': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_76_1-1-1.el8_1', 'sp':'1', 'cpu':'ppc64le', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.76.1.el8_1.x86_64': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_76_1-1-1.el8_1', 'sp':'1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.77.1.el8_1.ppc64le': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_77_1-1-1.el8_1', 'sp':'1', 'cpu':'ppc64le', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
]
},
'4.18.0-147.77.1.el8_1.x86_64': {
'pkgs': [
{'reference':'kpatch-patch-4_18_0-147_77_1-1-1.el8_1', 'sp':'1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
]
}
}
}
];
var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:kernel_live_checks);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);
var flag = 0;
var kernel_affected = FALSE;
foreach var kernel_array ( kernel_live_checks ) {
var repo_relative_urls = NULL;
if (!empty_or_null(kernel_array['repo_relative_urls'])) repo_relative_urls = kernel_array['repo_relative_urls'];
var kpatch_details = kernel_array['kernels'][uname_r];
if (empty_or_null(kpatch_details)) continue;
kernel_affected = TRUE;
foreach var pkg ( kpatch_details['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;
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 (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)) flag++;
}
}
# No kpatch details found for the running kernel version
if (!kernel_affected) audit(AUDIT_INST_VER_NOT_VULN, 'kernel', uname_r);
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' +
'Update Services for SAP Solutions repository.\n' +
'Access to this repository requires a paid RHEL subscription.\n';
var extra = NULL;
if (empty_or_null(applicable_repo_urls)) extra = subscription_caveat + rpm_report_get() + redhat_report_repo_caveat();
else extra = subscription_caveat + rpm_report_get() + redhat_report_package_caveat();
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, 'kpatch-patch-4_18_0-147_70_1 / kpatch-patch-4_18_0-147_74_1 / etc');
}