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
AI Score
Confidence
High
EPSS
Percentile
73.2%
The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0666-1 advisory.
A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation. (CVE-2023-39198)
A use-after-free vulnerability in the Linux kernel’s net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)
An issue was discovered in the Linux kernel before 6.6.8. do_vcc_ioctl in net/atm/ioctl.c has a use-after- free because of a vcc_recvmsg race condition. (CVE-2023-51780)
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 package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2024:0666-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(191131);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/29");
script_cve_id("CVE-2023-4921", "CVE-2023-39198", "CVE-2023-51780");
script_xref(name:"SuSE", value:"SUSE-SU-2024:0666-1");
script_name(english:"SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 12 for SLE 15 SP4) (SUSE-SU-2024:0666-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2024:0666-1 advisory.
- A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function
dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one
holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a
use-after-free issue, potentially leading to a denial of service or privilege escalation. (CVE-2023-39198)
- A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to
achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending
network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug
and lack of error checking in agg_dequeue(). We recommend upgrading past commit
8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)
- An issue was discovered in the Linux kernel before 6.6.8. do_vcc_ioctl in net/atm/ioctl.c has a use-after-
free because of a vcc_recvmsg race condition. (CVE-2023-51780)
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://bugzilla.suse.com/1215300");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217116");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218733");
# https://lists.suse.com/pipermail/sle-security-updates/2024-February/018066.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6a92a6fe");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39198");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-4921");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-51780");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel-livepatch-5_14_21-150400_24_63-default, kernel-livepatch-5_3_18-150200_24_145-default and /
or kgraft-patch-4_12_14-122_162-default 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: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-2023-4921");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/09/12");
script_set_attribute(attribute:"patch_publication_date", value:"2024/02/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/29");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-livepatch-5_14_21-150400_24_63-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-livepatch-5_3_18-150200_24_145-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_162-default");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE 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");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES15', 'SUSE (' + os_ver + ')');
var uname_r = get_kb_item("Host/uname-r");
if (empty_or_null(uname_r)) audit(AUDIT_UNKNOWN_APP_VER, "kernel");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(2|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP2/4", os_ver + " SP" + service_pack);
var kernel_live_checks = [
{
'kernels': {
'4.12.14-122.162-default': {
'pkgs': [
{'reference':'kgraft-patch-4_12_14-122_162-default-8-2.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']}
]
},
'5.14.21-150400.24.63-default': {
'pkgs': [
{'reference':'kernel-livepatch-5_14_21-150400_24_63-default-10-150400.2.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-live-patching-release-15.4']}
]
},
'5.3.18-150200.24.145-default': {
'pkgs': [
{'reference':'kernel-livepatch-5_3_18-150200_24_145-default-11-150200.2.1', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-live-patching-release-15.2']}
]
}
}
}
];
var ltss_caveat_required = FALSE;
var flag = 0;
var kernel_affected = FALSE;
foreach var kernel_array ( kernel_live_checks ) {
var kpatch_details = kernel_array['kernels'][uname_r];
if (empty_or_null(kpatch_details)) continue;
kernel_affected = TRUE;
foreach var package_array ( kpatch_details['pkgs'] ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
check_flag++;
}
if (!check_flag) continue;
}
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
# No kpatch details found for the running kernel version
if (!kernel_affected) audit(AUDIT_INST_VER_NOT_VULN, 'kernel', uname_r);
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel-livepatch-5_14_21-150400_24_63-default / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39198
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4921
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-51780
www.nessus.org/u?6a92a6fe
bugzilla.suse.com/1215300
bugzilla.suse.com/1217116
bugzilla.suse.com/1218733
www.suse.com/security/cve/CVE-2023-39198
www.suse.com/security/cve/CVE-2023-4921
www.suse.com/security/cve/CVE-2023-51780
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
AI Score
Confidence
High
EPSS
Percentile
73.2%