Vulnerabilities > CVE-2018-6251 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Nvidia GPU Driver

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
nvidia
microsoft
CWE-119
nessus

Summary

NVIDIA Windows GPU Display Driver contains a vulnerability in the DirectX 10 Usermode driver, where a specially crafted pixel shader can cause writing to unallocated memory, leading to denial of service or potential code execution.

Vulnerable Configurations

Part Description Count
Application
Nvidia
1
OS
Microsoft
1

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familyWindows
    NASL idNVIDIA_WIN_CVE_2018_6248.NASL
    descriptionThe NVIDIA GPU display driver software on the remote host is missing a security update. It is, therefore, affected by multiple vulnerabilities.
    last seen2020-06-01
    modified2020-06-02
    plugin id111107
    published2018-07-16
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/111107
    titleNVIDIA Linux GPU Display Driver Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(111107);
      script_version("1.4");
      script_cvs_date("Date: 2019/11/04");
    
      script_cve_id(
        "CVE-2018-6247",
        "CVE-2018-6248",
        "CVE-2018-6249",
        "CVE-2018-6250",
        "CVE-2018-6251",
        "CVE-2018-6252",
        "CVE-2018-6253"
      );
    
      script_name(english:"NVIDIA Linux GPU Display Driver Multiple Vulnerabilities");
      script_summary(english:"Checks the driver version.");
    
      script_set_attribute(attribute:"synopsis", value:
    "A display driver installed on the remote Windows host is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The NVIDIA GPU display driver software on the remote host is missing
    a security update. It is, therefore, affected by multiple
    vulnerabilities.");
      script_set_attribute(attribute:"see_also", value:"https://nvidia.custhelp.com/app/answers/detail/a_id/4649");
      script_set_attribute(attribute:"solution", value:
    "Upgrade the NVIDIA graphics driver in accordance with the
    vendor advisory.");
      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: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-2018-6251");
    
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/28");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/03/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/16");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:nvidia:gpu_driver");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows");
    
      script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("wmi_enum_display_drivers.nbin");
      script_require_keys("WMI/DisplayDrivers/NVIDIA", "Settings/ParanoidReport");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    kb_base = 'WMI/DisplayDrivers/';
    
    # double check in case optimization is disabled
    kbs = get_kb_list(kb_base + '*/Name');
    if (isnull(kbs)) exit(0, 'No display drivers were found.');
    
    report = '';
    
    foreach kb (keys(kbs))
    {
      name = kbs[kb];
      # only check NVIDIA drivers
      if ("NVIDIA" >!< name) continue;
    
      nvidia_found = TRUE;
      id = kb - kb_base - '/Name';
      version = get_kb_item_or_exit(kb_base + id + '/Version');
      driver_date = get_kb_item_or_exit(kb_base + id + '/DriverDate');
    
      disp_driver_date = driver_date;
    
      # convert to something we can pass to ver_compare (YYYY.MM.DD)
      driver_date = split(driver_date, sep:'/', keep:FALSE);
      driver_date = driver_date[2] + '.' + driver_date[0] + '.' + driver_date[1];
      fix = NULL;
      if (version =~ "^38(4|5|6)\." && ver_compare(ver:version, fix:"386.28", strict:FALSE) == -1) fix = "386.28";
      else if (version =~ "^39(0|1)\." && ver_compare(ver:version, fix:"391.29", strict:FALSE) == -1) fix = "391.29";
      
      if(!isnull(fix))
      {
        order = make_list('Device name','Driver version','Driver date','Fixed version');
        report = make_array(
          order[0],name,
          order[1],version,
          order[2],disp_driver_date,
          order[3],fix
          );
    
        report = report_items_str(report_items:report, ordered_fields:order);
        security_report_v4(severity:SECURITY_HOLE, port:0, extra:report);
        exit(0);
      }
      else
      {
        exit(0, "No vulnerable NVIDIA display drivers were found.");
      }
    }
    
    exit(0, 'No NVIDIA display drivers were found.');
    
  • NASL familyAmazon Linux Local Security Checks
    NASL idALA_ALAS-2018-991.NASL
    descriptionNVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a NULL pointer dereference may lead to denial of service or possible escalation of privileges. (CVE-2018-6247) NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer handler for DxgkDdiEscape where the software uses a sequential operation to read or write a buffer, but it uses an incorrect length value that causes it to access memory that is outside of the bounds of the buffer which may lead to denial of service or possible escalation of privileges. (CVE-2018-6248) NVIDIA GPU Display Driver contains a vulnerability in kernel mode layer handler where a NULL pointer dereference may lead to denial of service or potential escalation of privileges. (CVE-2018-6249) NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a NULL pointer dereference occurs, which may lead to denial of service or possible escalation of privileges. (CVE-2018-6250) NVIDIA Windows GPU Display Driver contains a vulnerability in the DirectX 10 Usermode driver, where a specially crafted pixel shader can cause writing to unallocated memory, leading to denial of service or potential code execution. (CVE-2018-6251) NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer handler for DxgkDdiEscape where the software allows an actor access to restricted functionality that is unnecessary for production usage, and which may result in denial of service. (CVE-2018-6252) NVIDIA GPU Display Driver contains a vulnerability in the DirectX and OpenGL Usermode drivers where a specially crafted pixel shader can cause infinite recursion leading to denial of service. (CVE-2018-6253)
    last seen2020-06-01
    modified2020-06-02
    plugin id108852
    published2018-04-06
    reporterThis script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108852
    titleAmazon Linux AMI : nvidia (ALAS-2018-991)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Amazon Linux AMI Security Advisory ALAS-2018-991.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(108852);
      script_version("1.4");
      script_cvs_date("Date: 2018/08/31 12:25:01");
    
      script_cve_id("CVE-2018-6247", "CVE-2018-6248", "CVE-2018-6249", "CVE-2018-6250", "CVE-2018-6251", "CVE-2018-6252", "CVE-2018-6253");
      script_xref(name:"ALAS", value:"2018-991");
    
      script_name(english:"Amazon Linux AMI : nvidia (ALAS-2018-991)");
      script_summary(english:"Checks rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Amazon Linux AMI host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "NVIDIA Windows GPU Display Driver contains a vulnerability in the
    kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a
    NULL pointer dereference may lead to denial of service or possible
    escalation of privileges. (CVE-2018-6247)
    
    NVIDIA Windows GPU Display Driver contains a vulnerability in the
    kernel mode layer handler for DxgkDdiEscape where the software uses a
    sequential operation to read or write a buffer, but it uses an
    incorrect length value that causes it to access memory that is outside
    of the bounds of the buffer which may lead to denial of service or
    possible escalation of privileges. (CVE-2018-6248)
    
    NVIDIA GPU Display Driver contains a vulnerability in kernel mode
    layer handler where a NULL pointer dereference may lead to denial of
    service or potential escalation of privileges. (CVE-2018-6249)
    
    NVIDIA Windows GPU Display Driver contains a vulnerability in the
    kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a
    NULL pointer dereference occurs, which may lead to denial of service
    or possible escalation of privileges. (CVE-2018-6250)
    
    NVIDIA Windows GPU Display Driver contains a vulnerability in the
    DirectX 10 Usermode driver, where a specially crafted pixel shader can
    cause writing to unallocated memory, leading to denial of service or
    potential code execution. (CVE-2018-6251)
    
    NVIDIA Windows GPU Display Driver contains a vulnerability in the
    kernel mode layer handler for DxgkDdiEscape where the software allows
    an actor access to restricted functionality that is unnecessary for
    production usage, and which may result in denial of service.
    (CVE-2018-6252)
    
    NVIDIA GPU Display Driver contains a vulnerability in the DirectX and
    OpenGL Usermode drivers where a specially crafted pixel shader can
    cause infinite recursion leading to denial of service. (CVE-2018-6253)"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://alas.aws.amazon.com/ALAS-2018-991.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Run 'yum update nvidia' to update your system."
      );
      script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A: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_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:nvidia");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:nvidia-dkms");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2018/04/05");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/06");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Amazon Linux Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");
    
      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/AmazonLinux/release");
    if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
    os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
    os_ver = os_ver[1];
    if (os_ver != "A")
    {
      if (os_ver == 'A') os_ver = 'AMI';
      audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
    }
    
    if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    if (rpm_check(release:"ALA", cpu:"x86_64", reference:"nvidia-384.125-2017.09.109.amzn1")) flag++;
    if (rpm_check(release:"ALA", cpu:"x86_64", reference:"nvidia-dkms-384.125-2017.09.109.amzn1")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nvidia / nvidia-dkms");
    }
    

Talos

idTALOS-2018-0514
last seen2019-05-29
published2018-03-28
reporterTalos Intelligence
sourcehttp://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0514
titleNvidia D3D10 Driver Pixel Shader Heap Memory Corruption Vulnerability