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
89.4%
The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3647-1 advisory.
In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing memory corruption. (CVE-2023-1077)
A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol.
This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the system. (CVE-2023-2156)
A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA in the Linux Kernel. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege. (CVE-2023-2176)
A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled. (CVE-2023-32233)
Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register contents when CAP_NET_ADMIN is in any user or network namespace (CVE-2023-35001)
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-2023:3647-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(181590);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/04");
script_cve_id(
"CVE-2023-1077",
"CVE-2023-2156",
"CVE-2023-2176",
"CVE-2023-3090",
"CVE-2023-32233",
"CVE-2023-35001"
);
script_xref(name:"SuSE", value:"SUSE-SU-2023:3647-1");
script_name(english:"SUSE SLES15 Security Update : kernel (Live Patch 11 for SLE 15 SP4) (SUSE-SU-2023:3647-1)");
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 SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in
the SUSE-SU-2023:3647-1 advisory.
- In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON
condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a
type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing
memory corruption. (CVE-2023-1077)
- A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol.
This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion
failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the
system. (CVE-2023-2156)
- A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA in the Linux
Kernel. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem
to crash the system or escalation of privilege. (CVE-2023-2176)
- A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to
achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in
the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend
upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)
- In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests
can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users
can obtain root privileges. This occurs because anonymous sets are mishandled. (CVE-2023-32233)
- Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register
contents when CAP_NET_ADMIN is in any user or network namespace (CVE-2023-35001)
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/1208839");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210630");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1211187");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1211395");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212849");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213063");
# https://lists.suse.com/pipermail/sle-security-updates/2023-September/016179.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5ecda9e4");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-1077");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-2156");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-2176");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-3090");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-32233");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-35001");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel-livepatch-5_14_21-150400_24_60-default package.");
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-2023-35001");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/03/27");
script_set_attribute(attribute:"patch_publication_date", value:"2023/09/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/19");
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_60-default");
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) 2023-2024 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:"^(SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES15', 'SUSE (' + os_ver + ')');
var uname_r = get_kb_item("Host/uname-r");
if (empty_or_null(uname_r)) audit(AUDIT_UNKNOWN_APP_VER, "kernel");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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 == "SLES15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP4", os_ver + " SP" + service_pack);
var kernel_live_checks = [
{
'kernels': {
'5.14.21-150400.24.60-default': {
'pkgs': [
{'reference':'kernel-livepatch-5_14_21-150400_24_60-default-5-150400.2.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-live-patching-release-15.4']}
]
}
}
}
];
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_60-default');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1077
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2156
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2176
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3090
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32233
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-35001
www.nessus.org/u?5ecda9e4
bugzilla.suse.com/1208839
bugzilla.suse.com/1210630
bugzilla.suse.com/1211187
bugzilla.suse.com/1211395
bugzilla.suse.com/1212849
bugzilla.suse.com/1213063
www.suse.com/security/cve/CVE-2023-1077
www.suse.com/security/cve/CVE-2023-2156
www.suse.com/security/cve/CVE-2023-2176
www.suse.com/security/cve/CVE-2023-3090
www.suse.com/security/cve/CVE-2023-32233
www.suse.com/security/cve/CVE-2023-35001
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
89.4%