SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2021:3386-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2021:3386-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(154054);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");

  script_cve_id(
    "CVE-2020-3702",
    "CVE-2021-3744",
    "CVE-2021-3752",
    "CVE-2021-3764",
    "CVE-2021-40490"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2021:3386-1");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2021:3386-1)");

  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 SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple
vulnerabilities as referenced in the SUSE-SU-2021:3386-1 advisory.

  - 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)

  - A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in
    drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption).
    This vulnerability is similar with the older CVE-2019-18808. (CVE-2021-3744)

  - A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to
    the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the
    system or escalate their privileges. The highest threat from this vulnerability is to confidentiality,
    integrity, as well as system availability. (CVE-2021-3752)

  - A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker
    to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat
    from this vulnerability is to system availability. (CVE-2021-3764)

  - A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in
    the Linux kernel through 5.13.13. (CVE-2021-40490)

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/1050244");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1056653");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1056657");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1056787");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1065729");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1104745");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1109837");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1111981");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1114648");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1118661");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1129770");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1148868");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1158533");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1173746");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1176940");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1181193");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1184439");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1185677");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1185727");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186785");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189297");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189407");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189884");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190023");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190115");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190159");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190523");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190534");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190543");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190576");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190601");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190620");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190626");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190717");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190914");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1191051");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1191136");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1191193");
  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-2021-3744");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3752");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3764");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-40490");
  # https://lists.suse.com/pipermail/sle-security-updates/2021-October/009580.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9915b878");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/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:A/AC:H/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-2021-3752");

  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:"2020/09/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/10/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cluster-md-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:dlm-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gfs2-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-kgraft");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-kgraft-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-man");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-macros");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-obs-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_91-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ocfs2-kmp-default");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  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) 2021-2023 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)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED12 / SLES12 / SLES_SAP12', '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 service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES12" && (! preg(pattern:"^(3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP3/4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'kernel-default-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-base-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-devel-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-man-4.12.14-122.91.2', 'sp':'5', 'cpu':'s390x', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-devel-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-macros-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-source-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-syms-4.12.14-122.91.2', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cluster-md-kmp-default-4.12.14-122.91.2', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'cluster-md-kmp-default-4.12.14-122.91.2', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'cluster-md-kmp-default-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'dlm-kmp-default-4.12.14-122.91.2', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'dlm-kmp-default-4.12.14-122.91.2', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'dlm-kmp-default-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'gfs2-kmp-default-4.12.14-122.91.2', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'gfs2-kmp-default-4.12.14-122.91.2', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'gfs2-kmp-default-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'ocfs2-kmp-default-4.12.14-122.91.2', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'ocfs2-kmp-default-4.12.14-122.91.2', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'ocfs2-kmp-default-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'kernel-default-kgraft-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']},
    {'reference':'kernel-default-kgraft-devel-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']},
    {'reference':'kgraft-patch-4_12_14-122_91-default-1-8.3.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']},
    {'reference':'kernel-obs-build-4.12.14-122.91.2', 'sp':'5', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
    {'reference':'kernel-obs-build-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
    {'reference':'kernel-default-extra-4.12.14-122.91.2', 'sp':'5', 'cpu':'x86_64', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-12.5']},
    {'reference':'kernel-default-extra-4.12.14-122.91.2', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-12.5']},
    {'reference':'kernel-default-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-default-base-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-default-devel-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-default-man-4.12.14-122.91.2', 'sp':'5', 'cpu':'s390x', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-devel-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-macros-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-source-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-syms-4.12.14-122.91.2', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var 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) {
      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++;
  }
}

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, 'cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc');
}