RHEL 7 : kernel (RHSA-2020:1465)

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:1465. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(135457);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");

  script_cve_id("CVE-2019-17666", "CVE-2019-19338");
  script_xref(name:"RHSA", value:"2020:1465");

  script_name(english:"RHEL 7 : kernel (RHSA-2020:1465)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:1465 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain
    upper-bound check, leading to a buffer overflow (CVE-2019-17666)

    * Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135)
    (CVE-2019-19338)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Slow console output with ast (Aspeed) graphics driver (BZ#1780146)

    * VFS: Busy inodes after unmount of loop0 when encountering duplicate directory inodes (BZ#1781158)

    * RHEL 7.7 long I/O stalls with bnx2fc from not masking off scope bits of retry delay value (BZ#1795648)

    * System Crash on vport creation (NPIV on FCoE) (BZ#1796363)

    * A directory on a gfs2 filesystem appears corrupt on nodeB after nodeA renames the directory (BZ#1796430)

    * [GSS] Can't access the mount point due to possible blocking of i/o on rbd (BZ#1796434)

    * [xfstests]: copy_file_range cause corruption on rhel-7 (BZ#1797966)

    * port show-kabi to python3 (BZ#1806928)

    * top shows super high loads when tuned profile realtime-virtual-host is applied (BZ#1808028)

    Enhancement(s):

    * scsi: qla2xxx: Fix panic in qla_dfs_tgt_counters_show' (BZ#1791594)

    * [Cavium 7.7 Feat] qla2xxx: Update to latest upstream. (BZ#1797503)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_1465.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7f8c38c");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:1465");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1763690");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1781514");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17666");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(120, 203);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:7.6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-perf");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');
include('ksplice.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release_list(operator: 'ge', os_version: os_ver, rhel_versions: ['7','7.6'])) audit(AUDIT_OS_NOT, 'Red Hat 7.x / 7.x', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
  rm_kb_item(name:'Host/uptrack-uname-r');
  var cve_list = make_list('CVE-2019-17666', 'CVE-2019-19338');
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for RHSA-2020:1465');
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

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    'pkgs': [
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      'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/os',
      'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/source/SRPMS',
      'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/debug',
      'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/os',
      'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhevh/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhevh/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhevh/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/source/SRPMS',
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      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'bpftool-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-bootwrapper-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-bootwrapper-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-kdump-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-kdump-devel-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python-perf-3.10.0-957.48.1.el7', 'cpu':'ppc64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python-perf-3.10.0-957.48.1.el7', 'cpu':'ppc64le', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python-perf-3.10.0-957.48.1.el7', 'cpu':'s390x', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python-perf-3.10.0-957.48.1.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    var reference = NULL;
    var _release = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'bpftool / kernel / kernel-bootwrapper / kernel-debug / etc');
}