SUSE SLES12 Security Update : kernel (SUSE-SU-2022:3294-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:3294-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(165232);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/15");

  script_cve_id(
    "CVE-2019-3900",
    "CVE-2020-36516",
    "CVE-2022-2588",
    "CVE-2022-2991",
    "CVE-2022-3028",
    "CVE-2022-20368",
    "CVE-2022-20369",
    "CVE-2022-21385",
    "CVE-2022-26373",
    "CVE-2022-36879",
    "CVE-2022-39188"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2022:3294-1");
  script_xref(name:"CEA-ID", value:"CEA-2021-0025");

  script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2022:3294-1)");

  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-2022:3294-1 advisory.

  - An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including
    v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster
    than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the
    vhost_net kernel thread, resulting in a DoS scenario. (CVE-2019-3900)

  - An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the
    hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session
    or terminate that session. (CVE-2020-36516)

  - Product: AndroidVersions: Android kernelAndroid ID: A-224546354References: Upstream kernel
    (CVE-2022-20368)

  - In v4l2_m2m_querybuf of v4l2-mem2mem.c, there is a possible out of bounds write due to improper input
    validation. This could lead to local escalation of privilege with System execution privileges needed. User
    interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-223375145References: Upstream kernel (CVE-2022-20369)

  - A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the
    machine. CVSS 3.1 Base Score 6.2 (Availability impacts). CVSS Vector
    (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) (CVE-2022-21385)

  - kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation
    (CVE-2022-2588)

  - Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow
    an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)

  - A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. The issue results from
    the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length
    heap-based buffer. This vulnerability allows a local attacker to escalate privileges and execute arbitrary
    code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged
    code on the target system to exploit this vulnerability. (CVE-2022-2991)

  - A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem)
    when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to
    potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read
    and copying it into a socket. (CVE-2022-3028)

  - An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in
    net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)

  - An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race
    condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale
    TLB entries. This only occurs in situations with VM_PFNMAP VMAs. (CVE-2022-39188)

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/1133374");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1191881");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1196616");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201420");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201726");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201948");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202096");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202346");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202347");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202393");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202897");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1202898");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203098");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203107");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-3900");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-36516");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-20368");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-20369");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-21385");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-2588");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-26373");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-2991");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3028");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-36879");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-39188");
  # https://lists.suse.com/pipermail/sle-security-updates/2022-September/012274.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1cc40e1a");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-36516");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-2588");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/09/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/09/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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-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-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
  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) 2022-2024 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:"^(2)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'kernel-default-4.4.121-92.188.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'kernel-default-base-4.4.121-92.188.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'kernel-default-devel-4.4.121-92.188.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'kernel-devel-4.4.121-92.188.1', 'sp':'2', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'kernel-macros-4.4.121-92.188.1', 'sp':'2', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'kernel-source-4.4.121-92.188.1', 'sp':'2', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'kernel-syms-4.4.121-92.188.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']}
];

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, 'kernel-default / kernel-default-base / kernel-default-devel / etc');
}