SUSE SLES12 Security Update : kernel (SUSE-SU-2023:0747-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:0747-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(172597);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/14");

  script_cve_id(
    "CVE-2021-4203",
    "CVE-2022-4129",
    "CVE-2022-38096",
    "CVE-2023-0597",
    "CVE-2023-1118",
    "CVE-2023-23559",
    "CVE-2023-26545"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2023:0747-1");

  script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2023:0747-1)");

  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 host has packages installed that are affected by multiple vulnerabilities as referenced in
the SUSE-SU-2023:0747-1 advisory.

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and
    SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a
    user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - A NULL pointer dereference vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c
    in GPU component of Linux kernel with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a
    local attacker with a user account on the system to gain privilege, causing a denial of service(DoS).
    (CVE-2022-38096)

  - A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing
    sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw
    to potentially crash the system causing a denial of service. (CVE-2022-4129)

  - A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was
    found in the way user can guess location of exception stack(s) or other important data. A local user could
    use this flaw to get access to some important data with expected location in memory. (CVE-2023-0597)

  - A flaw use after free in the Linux kernel integrated infrared receiver/transceiver driver was found in the
    way user detaching rc device. A local user could use this flaw to crash the system or potentially escalate
    their privileges on the system. (CVE-2023-1118)

  - In rndis_query_oid in drivers/net/wireless/rndis_wlan.c in the Linux kernel through 6.1.5, there is an
    integer overflow in an addition. (CVE-2023-23559)

  - In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure
    (for registering the sysctl table under a new location) during the renaming of a device. (CVE-2023-26545)

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/1065729");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1194535");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1198438");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203200");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203331");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1205711");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1206103");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207051");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207201");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207845");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208179");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208541");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208542");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208570");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208700");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208837");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1209008");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1209188");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-4203");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-38096");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-4129");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-0597");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-1118");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-23559");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-26545");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-March/014045.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?03439398");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:N/A:P");
  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-2021-4203");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-23559");

  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:"2022/03/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/03/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cluster-md-kmp-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:dlm-kmp-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gfs2-kmp-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-devel-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-rt-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-rt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-rt_debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-rt_debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-source-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms-rt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ocfs2-kmp-rt");
  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) 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)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12', '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 == "SLES12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'cluster-md-kmp-rt-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'dlm-kmp-rt-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'gfs2-kmp-rt-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-devel-rt-4.12.14-10.118.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt-base-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt-devel-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt_debug-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt_debug-devel-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-source-rt-4.12.14-10.118.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-syms-rt-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'ocfs2-kmp-rt-4.12.14-10.118.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-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_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, 'cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc');
}