SUSE SLES12 Security Update : kernel (SUSE-SU-2022:3810-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:3810-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(166765);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");

  script_cve_id(
    "CVE-2022-2503",
    "CVE-2022-3169",
    "CVE-2022-3239",
    "CVE-2022-3303",
    "CVE-2022-3424",
    "CVE-2022-20008",
    "CVE-2022-40307",
    "CVE-2022-40768",
    "CVE-2022-41218",
    "CVE-2022-41848"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2022:3810-1");

  script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2022:3810-1)");

  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-2022:3810-1 advisory.

  - In mmc_blk_read_single of block.c, there is a possible way to read kernel heap memory due to uninitialized
    data. This could lead to local information disclosure if reading from an SD card that triggers errors,
    with no additional execution privileges needed. User interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID: A-216481035References: Upstream kernel (CVE-2022-20008)

  - Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to
    restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently
    allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass
    verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and
    unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for
    peripherals that do not verify firmware updates. We recommend upgrading past commit
    4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)

  - A flaw was found in the Linux kernel. A denial of service flaw may occur if there is a consecutive request
    of the NVME_IOCTL_RESET and the NVME_IOCTL_SUBSYS_RESET through the device file of the driver, resulting
    in a PCIe link disconnect. (CVE-2022-3169)

  - A flaw use after free in the Linux kernel video4linux driver was found in the way user triggers
    em28xx_usb_probe() for the Empia 28xx based TV cards. A local user could use this flaw to crash the system
    or potentially escalate their privileges on the system. (CVE-2022-3239)

  - A race condition flaw was found in the Linux kernel sound subsystem due to improper locking. It could lead
    to a NULL pointer dereference while handling the SNDCTL_DSP_SYNC ioctl. A privileged local user (root or
    member of the audio group) could use this flaw to crash the system, resulting in a denial of service
    condition (CVE-2022-3303)

  - A use-after-free flaw was found in the Linux kernel's SGI GRU driver in the way the first
    gru_file_unlocked_ioctl function is called by the user, where a fail pass occurs in the
    gru_check_chiplet_assignment function. This flaw allows a local user to crash or potentially escalate
    their privileges on the system. (CVE-2022-3424)

  - An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a
    race condition with a resultant use-after-free. (CVE-2022-40307)

  - drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information
    from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.
    (CVE-2022-40768)

  - In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused
    by refcount races, affecting dvb_demux_open and dvb_dmxdev_release. (CVE-2022-41218)

  - drivers/char/pcmcia/synclink_cs.c in the Linux kernel through 5.19.12 has a race condition and resultant
    use-after-free if a physically proximate attacker removes a PCMCIA device while calling ioctl, aka a race
    condition between mgslpc_ioctl and mgslpc_detach. (CVE-2022-41848)

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/1032323");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1124235");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1129770");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1154048");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190317");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1199564");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201309");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202385");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202677");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202960");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203142");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203198");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203254");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203290");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203322");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203410");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203424");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203462");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203514");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203552");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203769");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203802");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203935");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203987");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1204166");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-20008");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-2503");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3169");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3239");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3303");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3424");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-40307");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-40768");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-41218");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-41848");
  # https://lists.suse.com/pipermail/sle-security-updates/2022-October/012772.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?db7b9ef8");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  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-2022-20008");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-3424");

  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:"2022/05/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/10/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/01");

  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) 2022-2023 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-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'dlm-kmp-rt-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'gfs2-kmp-rt-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-devel-rt-4.12.14-10.103.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-rt-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-rt-base-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-rt-devel-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-rt_debug-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-rt_debug-devel-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-source-rt-4.12.14-10.103.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'kernel-syms-rt-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-12.5']},
    {'reference':'ocfs2-kmp-rt-4.12.14-10.103.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_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_NOTE,
      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');
}