EulerOS 2.0 SP9 : dpdk (EulerOS-SA-2020-2410)

2020-11-03T00:00:00
ID EULEROS_SA-2020-2410.NASL
Type nessus
Reporter This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-11-03T00:00:00

Description

According to the versions of the dpdk packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  • A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A flawed bounds checking in the copy_data function leads to a buffer overflow allowing an attacker in a virtual machine to write arbitrary data to any address in the vhost_crypto application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2020-14374)

  • A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. Virtio ring descriptors, and the data they describe are in a region of memory accessible by from both the virtual machine and the host. An attacker in a VM can change the contents of the memory after vhost_crypto has validated it. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2020-14375)

  • A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A lack of bounds checking when copying iv_data from the VM guest memory into host memory can lead to a large buffer overflow. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2020-14376)

  • A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A complete lack of validation of attacker-controlled parameters can lead to a buffer over read. The results of the over read are then written back to the guest virtual machine memory. This vulnerability can be used by an attacker in a virtual machine to read significant amounts of host memory. The highest threat from this vulnerability is to data confidentiality and system availability.(CVE-2020-14377)

  • An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the move_desc function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause move_desc to get stuck in a 4,294,967,295-count iteration loop. Depending on how vhost_crypto is being used this could prevent other VMs or network tasks from being serviced by the busy DPDK lcore for an extended period.(CVE-2020-14378)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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

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

if (description)
{
  script_id(142320);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id(
    "CVE-2020-14374",
    "CVE-2020-14375",
    "CVE-2020-14376",
    "CVE-2020-14377",
    "CVE-2020-14378"
  );

  script_name(english:"EulerOS 2.0 SP9 : dpdk (EulerOS-SA-2020-2410)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the dpdk packages installed, the EulerOS
installation on the remote host is affected by the following
vulnerabilities :

  - A flaw was found in dpdk in versions before 18.11.10
    and before 19.11.5. A flawed bounds checking in the
    copy_data function leads to a buffer overflow allowing
    an attacker in a virtual machine to write arbitrary
    data to any address in the vhost_crypto application.
    The highest threat from this vulnerability is to data
    confidentiality and integrity as well as system
    availability.(CVE-2020-14374)

  - A flaw was found in dpdk in versions before 18.11.10
    and before 19.11.5. Virtio ring descriptors, and the
    data they describe are in a region of memory accessible
    by from both the virtual machine and the host. An
    attacker in a VM can change the contents of the memory
    after vhost_crypto has validated it. The highest threat
    from this vulnerability is to data confidentiality and
    integrity as well as system
    availability.(CVE-2020-14375)

  - A flaw was found in dpdk in versions before 18.11.10
    and before 19.11.5. A lack of bounds checking when
    copying iv_data from the VM guest memory into host
    memory can lead to a large buffer overflow. The highest
    threat from this vulnerability is to data
    confidentiality and integrity as well as system
    availability.(CVE-2020-14376)

  - A flaw was found in dpdk in versions before 18.11.10
    and before 19.11.5. A complete lack of validation of
    attacker-controlled parameters can lead to a buffer
    over read. The results of the over read are then
    written back to the guest virtual machine memory. This
    vulnerability can be used by an attacker in a virtual
    machine to read significant amounts of host memory. The
    highest threat from this vulnerability is to data
    confidentiality and system
    availability.(CVE-2020-14377)

  - An integer underflow in dpdk versions before 18.11.10
    and before 19.11.5 in the `move_desc` function can lead
    to large amounts of CPU cycles being eaten up in a long
    running loop. An attacker could cause `move_desc` to
    get stuck in a 4,294,967,295-count iteration loop.
    Depending on how `vhost_crypto` is being used this
    could prevent other VMs or network tasks from being
    serviced by the busy DPDK lcore for an extended
    period.(CVE-2020-14378)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-2410
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bfe88a5a");
  script_set_attribute(attribute:"solution", value:
"Update the affected dpdk packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dpdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dpdk-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

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

release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(9)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["dpdk-19.11-0.h16.eulerosv2r9",
        "dpdk-tools-19.11-0.h16.eulerosv2r9"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"9", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dpdk");
}