SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1) - Nessus

High Plugin ID: 157308

This page contains detailed information about the SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 157308
Name: SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1)
Filename: suse_SU-2022-0263-1.nasl
Vulnerability Published: 2020-09-08
This Plugin Published: 2022-02-02
Last Modification Time: 2022-02-02
Plugin Version: 1.2
Plugin Type: local
Plugin Family: SuSE Local Security Checks
Dependencies: linux_alt_patch_detect.nasl, ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list

Vulnerability Information

Severity: High
Vulnerability Published: 2020-09-08
Patch Published: 2022-02-01
CVE [?]: CVE-2020-3702, CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673, CVE-2021-23134, CVE-2021-42739
CPE [?]: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-197_83-default

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0263-1 advisory.

- A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations. (CVE-2020-25670)

- A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after- free which might lead to privilege escalations. (CVE-2020-25671)

- A memory leak vulnerability was found in Linux kernel in llcp_sock_connect (CVE-2020-25672)

- A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system. (CVE-2020-25673)

- u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)

- Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability. (CVE-2021-23134)

- The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking. (CVE-2021-42739)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel-livepatch-4_12_14-197_83-default package.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1) vulnerability:

GitHub: https://github.com/JaskaranNarula/Host_Errata_Info
[CVE-2021-42739]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS Score Source [?]: CVE-2020-25671
CVSS V2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	5.3 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.3 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS Base Score:	7.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	1.8
CVSS Temporal Score:	6.8 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.8 (Medium)

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Plugin Source

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:0263-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(157308);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/02/02");

  script_cve_id(
    "CVE-2020-3702",
    "CVE-2020-25670",
    "CVE-2020-25671",
    "CVE-2020-25672",
    "CVE-2020-25673",
    "CVE-2021-23134",
    "CVE-2021-42739"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2022:0263-1");

  script_name(english:"SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1)");

  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-2022:0263-1 advisory.

  - A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free
    which might lead to privilege escalations. (CVE-2020-25670)

  - A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-
    free which might lead to privilege escalations. (CVE-2020-25671)

  - A memory leak vulnerability was found in Linux kernel in llcp_sock_connect (CVE-2020-25672)

  - A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak
    and eventually hanging-up the system. (CVE-2020-25673)

  - u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to
    improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for
    a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon
    Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon
    Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W,
    MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)

  - Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to
    elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local
    user with the CAP_NET_RAW capability. (CVE-2021-23134)

  - The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to
    drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt
    mishandles bounds checking. (CVE-2021-42739)

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://bugzilla.suse.com/1186061");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1191529");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1192036");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1194680");
  # https://lists.suse.com/pipermail/sle-security-updates/2022-February/010153.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?637b1659");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25670");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25671");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25672");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25673");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-3702");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-23134");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-42739");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel-livepatch-4_12_14-197_83-default package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/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-2020-25671");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/09/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/02/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-197_83-default");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
include('ksplice.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string: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);

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 sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1", os_ver + " SP" + sp);

var pkgs = [
    {'reference':'kernel-livepatch-4_12_14-197_83-default-14-2.2', 'sp':'1', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sle-module-live-patching-release-15.1'}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach package_array ( 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) {
      if (!rpm_exists(release:release, rpm:exists_check)) continue;
      if ('ltss' >< tolower(exists_check)) ltss_caveat_required = TRUE;
    }
    if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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-4_12_14-197_83-default');
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/suse_SU-2022-0263-1.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\suse_SU-2022-0263-1.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/suse_SU-2022-0263-1.nasl

Go back to menu.

How to Run

Here is how to run the SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select SuSE Local Security Checks plugin family.
On the right side table select SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1) plugin ID 157308.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl suse_SU-2022-0263-1.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a suse_SU-2022-0263-1.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - suse_SU-2022-0263-1.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state suse_SU-2022-0263-1.nasl -t <IP/HOST>

Go back to menu.

References

SuSE Security Advisory:

SUSE-SU-2022:0263-1

See also:

Similar and related Nessus plugins:

156726 - RHEL 7 : kernel (RHSA-2022:0063)
156757 - Scientific Linux Security Update : kernel on SL7.x x86_64 (2022:0063)
156820 - CentOS 7 : kernel (CESA-2022:0063)
157208 - EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010)
157213 - EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1030)
157271 - SUSE SLES15 Security Update : kernel (Live Patch 20 for SLE 15 SP2) (SUSE-SU-2022:0238-1)
157276 - SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 20 for SLE 12 SP5) (SUSE-SU-2022:0246-1)
157278 - SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 16 for SLE 12 SP5) (SUSE-SU-2022:0234-1)
157279 - SUSE SLES12 Security Update : kernel (Live Patch 24 for SLE 12 SP5) (SUSE-SU-2022:0242-1)
157280 - SUSE SLES15 Security Update : kernel (Live Patch 23 for SLE 15) (SUSE-SU-2022:0243-1)
157282 - SUSE SLES15 Security Update : kernel (Live Patch 18 for SLE 15 SP2) (SUSE-SU-2022:0241-1)
157283 - SUSE SLES15 Security Update : kernel (Live Patch 24 for SLE 15) (SUSE-SU-2022:0237-1)
157284 - Slackware Linux 14.2 kernel-generic Multiple Vulnerabilities (SSA:2022-031-01)
157298 - SUSE SLES15 Security Update : kernel (Live Patch 4 for SLE 15 SP3) (SUSE-SU-2022:0257-1)
157301 - SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15) (SUSE-SU-2022:0255-1)
157302 - SUSE SLES15 Security Update : kernel (Live Patch 6 for SLE 15 SP3) (SUSE-SU-2022:0270-1)
157306 - SUSE SLES15 Security Update : kernel (Live Patch 15 for SLE 15 SP2) (SUSE-SU-2022:0254-1)
157310 - SUSE SLES12 Security Update : kernel (Live Patch 17 for SLE 12 SP5) (SUSE-SU-2022:0267-1)
157334 - SUSE SLES12 Security Update : kernel (Live Patch 20 for SLE 12 SP4) (SUSE-SU-2022:0298-1)
157341 - SUSE SLES15 Security Update : kernel (Live Patch 13 for SLE 15 SP2) (SUSE-SU-2022:0292-1)
157343 - SUSE SLES12 Security Update : kernel (Live Patch 18 for SLE 12 SP4) (SUSE-SU-2022:0296-1)
157344 - SUSE SLES15 Security Update : kernel (Live Patch 10 for SLE 15 SP2) (SUSE-SU-2022:0291-1)
157345 - SUSE SLES15 Security Update : kernel (Live Patch 0 for SLE 15 SP3) (SUSE-SU-2022:0293-1)
157346 - SUSE SLES15 Security Update : kernel (Live Patch 1 for SLE 15 SP3) (SUSE-SU-2022:0295-1)
157350 - Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel (GKE) vulnerabilities (USN-5266-1)
157351 - Ubuntu 20.04 LTS / 21.10 : Linux kernel vulnerabilities (USN-5265-1)
157352 - Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-5268-1)
157353 - Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5267-1)
157392 - SUSE SLES12 Security Update : kernel (Live Patch 39 for SLE 12 SP3) (SUSE-SU-2022:0327-1)
157395 - SUSE SLES12 Security Update : kernel (Live Patch 37 for SLE 12 SP3) (SUSE-SU-2022:0325-1)
157396 - SUSE SLES12 Security Update : kernel (Live Patch 40 for SLE 12 SP3) (SUSE-SU-2022:0328-1)
158125 - Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-5267-3)
158288 - EulerOS 2.0 SP3 : kernel (EulerOS-SA-2022-1171)
158387 - EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-1255)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file suse_SU-2022-0263-1.nasl version 1.2. For more plugins, visit the Nessus Plugin Library.

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SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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