SUSE SLES12 Security Update : kernel (SUSE-SU-2023:4359-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:4359-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(184402);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/04");

  script_cve_id(
    "CVE-2023-31085",
    "CVE-2023-34324",
    "CVE-2023-39189",
    "CVE-2023-45862"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2023:4359-1");

  script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2023:4359-1)");

  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-2023:4359-1 advisory.

  - An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error
    in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
    (CVE-2023-31085)

  - The vulnerability exists due to improper event handling in Linux kernel. A malicious guest can disable
    paravirtualized device to cause a deadlock in a backend domain (other than dom0). (CVE-2023-34324)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did
    not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN)
    attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

  - An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux
    kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

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/1206010");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208788");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210778");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213705");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213950");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213977");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215743");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215745");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216046");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216051");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216107");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216140");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216340");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216513");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216514");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-November/016991.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?27555ef5");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-31085");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-34324");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39189");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-45862");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:M/C:C/I:N/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:H/UI:N/S:U/C:H/I:N/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-2023-39189");

  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:"2023/03/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/11/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/04");

  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-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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-4.12.14-10.149.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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-4.12.14-10.149.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-syms-rt-4.12.14-10.149.1', '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-4.12.14-10.149.1', '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');
}