Virtuozzo 7 : readykernel-patch (VZA-2019-085)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(133462);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/28");

  script_cve_id("CVE-2018-14734", "CVE-2019-5489");

  script_name(english:"Virtuozzo 7 : readykernel-patch (VZA-2019-085)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Virtuozzo host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the vzkernel package and the
readykernel-patch installed, the Virtuozzo installation on the remote
host is affected by the following vulnerabilities :

  - [3.10.0-693.21.1.vz7.46.7 to 3.10.0-957.12.2.vz7.96.21]
    Page cache side channel attacks via mincore(). It was
    discovered that a local attacker could exploit
    mincore() system call to obtain information about
    memory pages of the running applications from the page
    cache even if the contents of these memory pages were
    not available to the attacker.

  - [3.10.0-693.21.1.vz7.46.7 to 3.10.0-957.12.2.vz7.96.21]
    infiniband: use-after-free in ucma_leave_multicast().
    It was found that ucma_leave_multicast() function from
    'rdma_ucm' module could try to access a certain data
    structure after the structure had been freed. This
    allows an attacker to induce kernel memory corruption,
    leading to a system crash or other unspecified impact.

Note that Tenable Network Security has extracted the preceding
description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://virtuozzosupport.force.com/s/article/VZA-2019-085");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-46.7-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0a4d8519");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-48.2-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ffc54f42");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-63.3-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1dc1187c");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-64.7-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ce183e85");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-73.24-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7b768cfa");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-73.29-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7b672cab");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-85.17-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a4161ae2");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-86.2-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?52498069");
  # https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-96.21-90.0-1.vl7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?818cf162");
  script_set_attribute(attribute:"solution", value:
"Update the readykernel patch.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/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-2018-14734");

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

  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:readykernel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:virtuozzo:virtuozzo:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Virtuozzo 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");
  script_require_keys("Host/local_checks_enabled", "Host/Virtuozzo/release", "Host/Virtuozzo/rpm-list", "Host/readykernel-info");

  exit(0);
}

include("global_settings.inc");
include("readykernel.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/Virtuozzo/release");
if (isnull(release) || "Virtuozzo" >!< release) audit(AUDIT_OS_NOT, "Virtuozzo");
os_ver = pregmatch(pattern: "Virtuozzo Linux release ([0-9]+\.[0-9])(\D|$)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Virtuozzo 7.x", "Virtuozzo " + os_ver);

if (!get_kb_item("Host/Virtuozzo/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Virtuozzo", cpu);

rk_info = get_kb_item("Host/readykernel-info");
if (empty_or_null(rk_info)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");

checks = make_list2(
  make_array(
    "kernel","vzkernel-3.10.0-693.21.1.vz7.46.7",
    "patch","readykernel-patch-46.7-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-693.21.1.vz7.48.2",
    "patch","readykernel-patch-48.2-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.11.6.vz7.64.7",
    "patch","readykernel-patch-63.3-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.20.2.vz7.73.24",
    "patch","readykernel-patch-64.7-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.20.2.vz7.73.29",
    "patch","readykernel-patch-73.24-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-862.9.1.vz7.63.3",
    "patch","readykernel-patch-73.29-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-957.10.1.vz7.85.17",
    "patch","readykernel-patch-85.17-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-957.12.2.vz7.86.2",
    "patch","readykernel-patch-86.2-90.0-1.vl7"
  ),
  make_array(
    "kernel","vzkernel-3.10.0-957.12.2.vz7.96.21",
    "patch","readykernel-patch-96.21-90.0-1.vl7"
  )
);
readykernel_execute_checks(checks:checks, severity:SECURITY_WARNING, release:"Virtuozzo-7");