EulerOS Virtualization 2.5.3 : kernel (EulerOS-SA-2019-1259)

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

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

if (description)
{
  script_id(123727);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id(
    "CVE-2018-10902",
    "CVE-2018-16862",
    "CVE-2018-5848",
    "CVE-2018-9516",
    "CVE-2019-3701",
    "CVE-2019-3819",
    "CVE-2019-9213"
  );

  script_name(english:"EulerOS Virtualization 2.5.3 : kernel (EulerOS-SA-2019-1259)");
  script_summary(english:"Checks the rpm output for the updated packages.");

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

  - An issue was discovered in can_can_gw_rcv in
    net/can/gw.c in the Linux kernel through 4.19.13. The
    CAN frame modification rules allow bitwise logical
    operations that can be also applied to the can_dlc
    field. Because of a missing check, the CAN drivers may
    write arbitrary content beyond the data registers in
    the CAN controller's I/O memory when processing can-gw
    manipulated outgoing frames. This is related to
    cgw_csum_xor_rel. An unprivileged user can trigger a
    system crash (general protection fault).(CVE-2019-3701)

  - A flaw was found in mmap in the Linux kernel allowing
    the process to map a null page. This allows attackers
    to abuse this mechanism to turn null pointer
    dereferences into workable exploits.(CVE-2019-9213)

  - A security flaw was found in the Linux kernel in a way
    that the cleancache subsystem clears an inode after the
    final file truncation (removal). The new file created
    with the same inode may contain leftover pages from
    cleancache and the old file data instead of the new
    one.i1/4^CVE-2018-16862i1/4%0

  - It was found that the raw midi kernel driver does not
    protect against concurrent access which leads to a
    double realloc (double free) in
    snd_rawmidi_input_params() and
    snd_rawmidi_output_status() which are part of
    snd_rawmidi_ioctl() handler in rawmidi.c file. A
    malicious local attacker could possibly use this for
    privilege escalation.i1/4^CVE-2018-10902i1/4%0

  - In the function wmi_set_ie() in the Linux kernel the
    length validation code does not handle unsigned integer
    overflow properly. As a result, a large value of the
    aEUR~ie_lenaEURtm argument can cause a buffer overflow and
    thus a memory corruption leading to a system crash or
    other or unspecified impact. Due to the nature of the
    flaw, privilege escalation cannot be fully ruled out,
    although we believe it is unlikely.i1/4^CVE-2018-5848i1/4%0

  - A flaw was found in the Linux kernel in the function
    hid_debug_events_read() in the drivers/hid/hid-debug.c
    file which may enter an infinite loop with certain
    parameters passed from a user space. A local privileged
    user ('root') can cause a system lock up and a denial
    of service.i1/4^CVE-2019-3819i1/4%0

  - A flaw was found in the Linux kernel in the
    hid_debug_events_read() function in the
    drivers/hid/hid-debug.c file. A lack of the certain
    checks may allow a privileged user ('root') to achieve
    an out-of-bounds write and thus receiving user space
    buffer corruption.i1/4^CVE-2018-9516i1/4%0

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-2019-1259
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?39825ffc");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel 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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

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

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.5.3");
  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) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.5.3") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.5.3");
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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["kernel-3.10.0-514.44.5.10_136",
        "kernel-devel-3.10.0-514.44.5.10_136",
        "kernel-headers-3.10.0-514.44.5.10_136",
        "kernel-tools-3.10.0-514.44.5.10_136",
        "kernel-tools-libs-3.10.0-514.44.5.10_136",
        "kernel-tools-libs-devel-3.10.0-514.44.5.10_136"];

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