EulerOS 2.0 SP8 : qemu (EulerOS-SA-2020-1029)

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

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

if (description)
{
  script_id(132622);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/01");

  script_cve_id("CVE-2018-20815");

  script_name(english:"EulerOS 2.0 SP8 : qemu (EulerOS-SA-2020-1029)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the qemu packages installed, the EulerOS
installation on the remote host is affected by the following
vulnerability :

  - In QEMU 3.1.0, load_device_tree in device_tree.c calls
    the deprecated load_image function, which has a buffer
    overflow risk.(CVE-2018-20815)

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-2020-1029
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cd8b815a");
  script_set_attribute(attribute:"solution", value:
"Update the affected qemu package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/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-2018-20815");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-audio-alsa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-audio-oss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-audio-pa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-audio-sdl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-dmg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-gluster");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-nfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-rbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-block-ssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-system-aarch64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-system-aarch64-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-ui-curses");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-ui-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-ui-sdl");
  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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/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 !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "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 = ["qemu-audio-alsa-3.0.1-3.h4.eulerosv2r8",
        "qemu-audio-oss-3.0.1-3.h4.eulerosv2r8",
        "qemu-audio-pa-3.0.1-3.h4.eulerosv2r8",
        "qemu-audio-sdl-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-curl-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-dmg-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-gluster-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-iscsi-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-nfs-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-rbd-3.0.1-3.h4.eulerosv2r8",
        "qemu-block-ssh-3.0.1-3.h4.eulerosv2r8",
        "qemu-common-3.0.1-3.h4.eulerosv2r8",
        "qemu-img-3.0.1-3.h4.eulerosv2r8",
        "qemu-kvm-3.0.1-3.h4.eulerosv2r8",
        "qemu-system-aarch64-3.0.1-3.h4.eulerosv2r8",
        "qemu-system-aarch64-core-3.0.1-3.h4.eulerosv2r8",
        "qemu-ui-curses-3.0.1-3.h4.eulerosv2r8",
        "qemu-ui-gtk-3.0.1-3.h4.eulerosv2r8",
        "qemu-ui-sdl-3.0.1-3.h4.eulerosv2r8"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"8", 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, "qemu");
}