SUSE SLES12 Security Update : kernel (SUSE-SU-2023:3006-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:3006-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(178954);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/01");

  script_cve_id("CVE-2023-2985", "CVE-2023-20593", "CVE-2023-35001");
  script_xref(name:"SuSE", value:"SUSE-SU-2023:3006-1");

  script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2023:3006-1)");

  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-2023:3006-1 advisory.

  - An issue in Zen 2 CPUs, under specific microarchitectural circumstances, may allow an attacker to
    potentially access sensitive information. (CVE-2023-20593)

  - A use after free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw
    could allow a local user to cause a denial of service problem. (CVE-2023-2985)

  - 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/1150305");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1173438");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202716");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1205496");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207617");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207620");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207629");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207630");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207633");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207634");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1207653");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208788");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210584");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210765");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210766");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210771");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1211867");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212301");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212657");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212741");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212835");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212871");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212905");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212986");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212987");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212988");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212989");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212990");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213010");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213011");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213012");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213013");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213014");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213015");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213017");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213018");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213019");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213020");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213021");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213022");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213023");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213024");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213025");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213032");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213033");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213034");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213035");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213036");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213037");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213038");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213039");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213040");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213041");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213042");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213059");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213133");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213215");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213218");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213221");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213286");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213344");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213346");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213525");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-July/015680.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?65a6fbc3");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-20593");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-2985");
  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 packages.");
  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: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-2023-35001");

  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:"2023/06/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/07/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/28");

  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-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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-4.12.14-10.133.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-rt-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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-4.12.14-10.133.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Linux-Enterprise-RT-release-12.5']},
    {'reference':'kernel-syms-rt-4.12.14-10.133.1', '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-4.12.14-10.133.1', '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');
}