Vulnerabilities > CVE-2017-8496 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Edge

047910
CVSS 7.6 - HIGH
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
high complexity
microsoft
CWE-119
nessus
exploit available
NVD
Published: 2017-06-15
Updated: 2019-03-19

Summary

Microsoft Edge in Windows 10 1607 and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user when Microsoft Edge improperly accesses objects in memory, aka "Microsoft Edge Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8497.

Vulnerable Configurations

Part Description Count
Application
Microsoft
1
OS
Microsoft
2

Common Weakness Enumeration (CWE)

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.

Exploit-Db

descriptionMicrosoft Edge - 'CssParser::RecordProperty' Type Confusion. CVE-2017-8496. Dos exploit for Windows platform
fileexploits/windows/dos/42246.html
idEDB-ID:42246
last seen2017-06-23
modified2017-06-23
platformwindows
port
published2017-06-23
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/42246/
titleMicrosoft Edge - 'CssParser::RecordProperty' Type Confusion
typedos

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS17_JUN_4022715.NASL
descriptionThe remote Windows host is missing security update KB4022715. It is, therefore, affected by multiple vulnerabilities : - Multiple security bypass vulnerabilities exist in Device Guard. A local attacker can exploit these, via a specially crafted script, to bypass the Device Guard Code Integrity policy and inject arbitrary code into a trusted PowerShell process. (CVE-2017-0173, CVE-2017-0215, CVE-2017-0216, CVE-2017-0218, CVE-2017-0219) - An elevation of privilege vulnerability exists in Windows Hyper-V instruction emulation due to a failure to properly enforce privilege levels. An attacker on a guest operating system can exploit this to gain elevated privileges on the guest. Note that the host operating system is not vulnerable. (CVE-2017-0193) - Multiple information disclosure vulnerabilities exist in Windows Uniscribe due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit these, by convincing a user to visit a specially crafted website or open a specially crafted document, to disclose the contents of memory. (CVE-2017-0282, CVE-2017-0284, CVE-2017-0285) - A remote code execution vulnerability exists in Windows Uniscribe software due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website or to open a specially crafted document, to execute arbitrary code in the context of the current user. (CVE-2017-0283) - Multiple information disclosure vulnerabilities exist in the Windows GDI component due to improper handling of objects in memory. An unauthenticated, remote attacker can exploit these, by convincing a user to visit a specially crafted website or open a specially crafted document, to disclose the contents of memory. (CVE-2017-0287, CVE-2017-0288, CVE-2017-0289, CVE-2017-8531, CVE-2017-8532, CVE-2017-8533) - Multiple remote code execution vulnerabilities exist in Microsoft Windows due to improper parsing of PDF files. An unauthenticated, remote attacker can exploit these, by convincing a user to open a specially crafted PDF file, to execute arbitrary code in the context of the current user. (CVE-2017-0291, CVE-2017-0292) - A remote code execution vulnerability exists in Microsoft Windows due to improper handling of cabinet files. An unauthenticated, remote attacker can exploit this, by convincing a user to open a specially crafted cabinet file, to execute arbitrary code in the context of the current user. (CVE-2017-0294) - A flaw exists in Microsoft Windows due to incorrect permissions being set on folders inside the DEFAULT folder structure. An authenticated, remote attacker can exploit this, by logging in to the affected system before the user can log in, to modify the user
last seen2020-05-31
modified2017-06-13
plugin id100760
published2017-06-13
reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/100760
titleKB4022715: Windows 10 Version 1607 and Windows Server 2016 June 2017 Cumulative Update
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100760);
  script_version("1.28");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/28");

  script_cve_id(
    "CVE-2017-0173",
    "CVE-2017-0193",
    "CVE-2017-0215",
    "CVE-2017-0216",
    "CVE-2017-0218",
    "CVE-2017-0219",
    "CVE-2017-0282",
    "CVE-2017-0283",
    "CVE-2017-0284",
    "CVE-2017-0285",
    "CVE-2017-0287",
    "CVE-2017-0288",
    "CVE-2017-0289",
    "CVE-2017-0291",
    "CVE-2017-0292",
    "CVE-2017-0294",
    "CVE-2017-0295",
    "CVE-2017-0296",
    "CVE-2017-0297",
    "CVE-2017-0298",
    "CVE-2017-0299",
    "CVE-2017-0300",
    "CVE-2017-8460",
    "CVE-2017-8462",
    "CVE-2017-8464",
    "CVE-2017-8465",
    "CVE-2017-8466",
    "CVE-2017-8468",
    "CVE-2017-8470",
    "CVE-2017-8471",
    "CVE-2017-8473",
    "CVE-2017-8474",
    "CVE-2017-8475",
    "CVE-2017-8476",
    "CVE-2017-8477",
    "CVE-2017-8478",
    "CVE-2017-8479",
    "CVE-2017-8480",
    "CVE-2017-8481",
    "CVE-2017-8482",
    "CVE-2017-8483",
    "CVE-2017-8484",
    "CVE-2017-8485",
    "CVE-2017-8489",
    "CVE-2017-8490",
    "CVE-2017-8491",
    "CVE-2017-8492",
    "CVE-2017-8493",
    "CVE-2017-8494",
    "CVE-2017-8496",
    "CVE-2017-8497",
    "CVE-2017-8498",
    "CVE-2017-8504",
    "CVE-2017-8515",
    "CVE-2017-8517",
    "CVE-2017-8518",
    "CVE-2017-8522",
    "CVE-2017-8523",
    "CVE-2017-8524",
    "CVE-2017-8527",
    "CVE-2017-8530",
    "CVE-2017-8531",
    "CVE-2017-8532",
    "CVE-2017-8533",
    "CVE-2017-8543",
    "CVE-2017-8544",
    "CVE-2017-8547",
    "CVE-2017-8548",
    "CVE-2017-8549",
    "CVE-2017-8553",
    "CVE-2017-8554",
    "CVE-2017-8575",
    "CVE-2017-8576",
    "CVE-2017-8579"
  );
  script_bugtraq_id(
    98818,
    98819,
    98820,
    98821,
    98824,
    98826,
    98833,
    98835,
    98836,
    98837,
    98839,
    98840,
    98843,
    98844,
    98845,
    98846,
    98847,
    98848,
    98849,
    98850,
    98852,
    98853,
    98854,
    98855,
    98856,
    98857,
    98858,
    98859,
    98860,
    98862,
    98863,
    98865,
    98867,
    98869,
    98870,
    98873,
    98878,
    98879,
    98880,
    98882,
    98884,
    98885,
    98886,
    98887,
    98892,
    98895,
    98896,
    98897,
    98898,
    98900,
    98901,
    98902,
    98903,
    98904,
    98914,
    98918,
    98920,
    98922,
    98923,
    98926,
    98928,
    98929,
    98930,
    98932,
    98933,
    98940,
    98942,
    98954,
    98955,
    99210,
    99212,
    99215
  );
  script_xref(name:"MSKB", value:"4022715");
  script_xref(name:"MSFT", value:"MS17-4022715");

  script_name(english:"KB4022715: Windows 10 Version 1607 and Windows Server 2016 June 2017 Cumulative Update");
  script_summary(english:"Checks for presence of the patch rollup.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing security update KB4022715. It is,
therefore, affected by multiple vulnerabilities :

  - Multiple security bypass vulnerabilities exist in
    Device Guard. A local attacker can exploit these, via a
    specially crafted script, to bypass the Device Guard
    Code Integrity policy and inject arbitrary code into a
    trusted PowerShell process. (CVE-2017-0173,
    CVE-2017-0215, CVE-2017-0216, CVE-2017-0218,
    CVE-2017-0219)

  - An elevation of privilege vulnerability exists in
    Windows Hyper-V instruction emulation due to a failure
    to properly enforce privilege levels. An attacker on a
    guest operating system can exploit this to gain elevated
    privileges on the guest. Note that the host operating
    system is not vulnerable. (CVE-2017-0193)

  - Multiple information disclosure vulnerabilities exist in
    Windows Uniscribe due to improper handling of objects in
    memory. An unauthenticated, remote attacker can exploit
    these, by convincing a user to visit a specially crafted
    website or open a specially crafted document, to
    disclose the contents of memory. (CVE-2017-0282,
    CVE-2017-0284, CVE-2017-0285)

  - A remote code execution vulnerability exists in
    Windows Uniscribe software due to improper handling of
    objects in memory. An unauthenticated, remote attacker
    can exploit this, by convincing a user to visit a
    specially crafted website or to open a specially crafted
    document, to execute arbitrary code in the context
    of the current user. (CVE-2017-0283)

  - Multiple information disclosure vulnerabilities exist in
    the Windows GDI component due to improper handling of
    objects in memory. An unauthenticated, remote attacker
    can exploit these, by convincing a user to visit a
    specially crafted website or open a specially crafted
    document, to disclose the contents of memory.
    (CVE-2017-0287, CVE-2017-0288, CVE-2017-0289,
    CVE-2017-8531, CVE-2017-8532, CVE-2017-8533)

  - Multiple remote code execution vulnerabilities exist in
    Microsoft Windows due to improper parsing of PDF files.
    An unauthenticated, remote attacker can exploit these,
    by convincing a user to open a specially crafted PDF
    file, to execute arbitrary code in the context of the
    current user. (CVE-2017-0291, CVE-2017-0292)

  - A remote code execution vulnerability exists in
    Microsoft Windows due to improper handling of cabinet
    files. An unauthenticated, remote attacker can exploit
    this, by convincing a user to open a specially crafted
    cabinet file, to execute arbitrary code in the context
    of the current user. (CVE-2017-0294)

  - A flaw exists in Microsoft Windows due to incorrect
    permissions being set on folders inside the DEFAULT
    folder structure. An authenticated, remote attacker can
    exploit this, by logging in to the affected system
    before the user can log in, to modify the user's DEFAULT
    folder contents. (CVE-2017-0295)

  - An elevation of privilege vulnerability exists in
    tdx.sys due to a failure to check the length of a buffer
    prior to copying memory to it. A local attacker can
    exploit this, via a specially crafted application, to
    execute arbitrary code in an elevated context.
    (CVE-2017-0296)

  - An elevation of privilege vulnerability exists in the
    Windows kernel due to improper handling of objects in
    memory. A local attacker can exploit this, via a
    specially crafted application, to execute arbitrary code
    with elevated permissions. (CVE-2017-0297)

  - An elevation of privilege vulnerability exists in the
    DCOM object in Helppane.exe, when configured to run as
    the interactive user, due to a failure to properly
    authenticate the client. An authenticated, remote
    attacker can exploit this, via a specially crafted
    application, to run arbitrary code in another user's
    session after that user has logged on to the same system
    using Terminal Services or Fast User Switching.
    (CVE-2017-0298)

  - Multiple information disclosure vulnerabilities exist in
    the Windows kernel due to improper initialization of
    objects in memory. An authenticated, remote attacker can
    exploit these, via a specially crafted application, to
    disclose the base address of the kernel driver.
    (CVE-2017-0299, CVE-2017-0300, CVE-2017-8462,
    CVE-2017-8485)

  - An information disclosure vulnerability exists in
    Microsoft Windows due to improper parsing of PDF files.
    An unauthenticated, remote attacker can exploit this, by
    convincing a user to open a specially crafted PDF file,
    to disclose the contents of memory. (CVE-2017-8460)

  - A remote code execution vulnerability exists in Windows
    due to improper handling of shortcuts. An
    unauthenticated, remote attacker can exploit this, by
    convincing a user to insert a removable drive containing
    a malicious shortcut and binary, to automatically
    execute arbitrary code in the context of the current
    user. (CVE-2017-8464)

  - Multiple elevation of privilege vulnerabilities exist in
    the Windows kernel-mode driver due to improper handling
    of objects in memory. A local attacker can exploit
    these, via a specially crafted application, to run
    processes in an elevated context. (CVE-2017-8465,
    CVE-2017-8466, CVE-2017-8468)

  - Multiple information disclosure vulnerabilities exist in
    the Windows kernel due to improper initialization of
    objects in memory. An authenticated, remote attacker can
    exploit these, via a specially crafted application, to
    disclose sensitive information. (CVE-2017-8470,
    CVE-2017-8471, CVE-2017-8473, CVE-2017-8474,
    CVE-2017-8475, CVE-2017-8476, CVE-2017-8477,
    CVE-2017-8478, CVE-2017-8479, CVE-2017-8480,
    CVE-2017-8481, CVE-2017-8482, CVE-2017-8483,
    CVE-2017-8484, CVE-2017-8489, CVE-2017-8490,
    CVE-2017-8491, CVE-2017-8492)

  - A security bypass vulnerability exists due to a failure
    to enforce case sensitivity for certain variable checks.
    A local attacker can exploit this, via a specially
    crafted application, to bypass Unified Extensible
    Firmware Interface (UEFI) variable security.
    (CVE-2017-8493)

  - An elevation of privilege vulnerability exists in the
    Windows Secure Kernel Mode feature due to a failure to
    properly handle objects in memory. A local attacker can
    exploit this, via a specially crafted application, to
    bypass virtual trust levels (VTL). (CVE-2017-8494)

  - Multiple remote code execution vulnerabilities exist in
    Microsoft Edge due to improper handling of objects in
    memory. An unauthenticated, remote attacker can exploit
    these, by convincing a user to visit a specially crafted
    website, to execute arbitrary code in the context of the
    current user. (CVE-2017-8496, CVE-2017-8497)

  - An information disclosure vulnerability exists in
    Microsoft Edge due to improper handling of JavaScript
    XML DOM objects. An unauthenticated, remote attacker can
    exploit this, by convincing a user to visit a specially
    crafted website, to disclose sensitive information.
    (CVE-2017-8498)

  - An information disclosure vulnerability exists in
    Microsoft Edge in the Fetch API due to improper handling
    of filtered response types. An unauthenticated, remote
    attacker can exploit this, by convincing a user to visit
    a specially crafted website, to disclose sensitive
    information in the URL of a cross-origin request.
    (CVE-2017-8504)

  - A denial of service vulnerability exists in Windows due
    to improper handling of kernel mode requests. An
    unauthenticated, remote attacker can exploit this, via a
    specially crafted kernel mode request, to cause the
    machine to stop responding or rebooting. (CVE-2017-8515)

  - Multiple remote code execution vulnerabilities exist in
    Microsoft browsers in the JavaScript engines due to
    improper handling of objects in memory. An
    unauthenticated, remote attacker can exploit these, by
    convincing a user to visit a specially crafted website,
    to execute arbitrary code in the context of the current
    user. (CVE-2017-8517, CVE-2017-8522, CVE-2017-8524,
    CVE-2017-8548)

  - A same-origin policy bypass vulnerability exists in
    Microsoft Edge due to a failure to properly apply the
    Same Origin Policy for HTML elements. An
    unauthenticated, remote attacker can exploit this, by
    convincing a user to follow a link, to load a page with
    malicious content. (CVE-2017-8523)

  - A remote code execution vulnerability exists in the
    Windows font library due to improper handling of
    embedded fonts. An unauthenticated, remote attacker can
    exploit this, by convincing a user to visit a specially
    crafted website or open a specially crafted Microsoft
    document, to execute arbitrary code in the context of
    the current user. (CVE-2017-8527)

  - A same-origin policy bypass vulnerability exists in
    Microsoft Edge due to a failure to properly enforce
    same-origin policies. An unauthenticated, remote
    attacker can exploit this, by convincing a user to visit
    a specially crafted website, to disclose information
    from origins outside the current one. (CVE-2017-8530)

  - A remote code execution vulnerability exists in the
    Windows Search functionality due to improper handling of
    objects in memory. An unauthenticated, remote attacker
    can exploit this, via a specially crafted SMB message,
    to execute arbitrary code. (CVE-2017-8543)

  - An information disclosure vulnerability exists in the
    Windows Search functionality due to improper handling of
    objects in memory. An unauthenticated, remote attacker
    can exploit this, via a specially crafted SMB message,
    to disclose sensitive information. (CVE-2017-8544)

  - A remote code execution vulnerability exists in Internet
    Explorer due to improper handling of objects in memory.
    An unauthenticated, remote attacker can exploit this, by
    convincing a user to visit a specially crafted website,
    to execute arbitrary code in the context of the current
    user. (CVE-2017-8547)

  - A remote code execution vulnerability exists in
    Microsoft Edge in the JavaScript scripting engine due to
    improper handling of objects in memory. An
    unauthenticated, remote attacker can exploit this, by
    convincing a user to visit a specially crafted website,
    to execute arbitrary code in the context of the current
    user. (CVE-2017-8549)

  - Multiple information disclosure vulnerabilities exist in
    the Windows kernel due to improper handling of objects
    in memory. An authenticated, remote attacker can exploit
    these, via a specially crafted application, to disclose
    the contents of memory. (CVE-2017-8553, CVE-2017-8554)

  - An information disclosure vulnerability exists in the
    Windows Graphics component due to improper handling of
    objects in memory. An authenticated, remote attacker can
    exploit this, via a specially crafted application, to
    disclose sensitive information. (CVE-2017-8575)

  - An elevation of privilege vulnerability exists in the
    Windows Graphics component due to improper
    initialization of objects in memory. A local attacker
    can exploit this, via a specially crafted application,
    to execute arbitrary code in kernel mode.
    (CVE-2017-8576)

  - An elevation of privilege vulnerability exists DirectX
    due to improper handling of objects in memory. A local
    attacker can exploit this, via a specially crafted
    application, to execute arbitrary code in kernel mode.
    (CVE-2017-8576)
");
  # https://support.microsoft.com/en-us/help/4022715/windows-10-update-kb4022715
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4ac6572f");
  script_set_attribute(attribute:"solution", value:
"Apply security update KB4022715 as well as refer to the KB article for additional information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-8543");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'LNK Code Execution Vulnerability');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

## NB: Microsoft 
bulletin = 'MS17-06';
kbs = make_list('4022715');

if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);

# Update only applies to Window 10 1607 / Server 2016
if (hotfix_check_sp_range(win10:'0') <= 0) 
  audit(AUDIT_OS_SP_NOT_VULN);

if (hotfix_check_server_nano() == 1) audit(AUDIT_OS_NOT, "a currently supported OS (Windows Nano Server)");


share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  # Windows 10 1607 / Server 2016
  smb_check_rollup(
    os:"10",
    sp:0,
    os_build:"14393",
    rollup_date:"06_2017",
    bulletin:bulletin,
    rollup_kb_list:kbs)
)
{
  replace_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/143135/GS20170624175607.txt
idPACKETSTORM:143135
last seen2017-06-24
published2017-06-24
reporterIvan Fratric
sourcehttps://packetstormsecurity.com/files/143135/Microsoft-Edge-CssParser-RecordProperty-Type-Confusion.html
titleMicrosoft Edge CssParser::RecordProperty Type Confusion

Seebug

bulletinFamilyexploit
description#### Preliminary analysis: The crash happens inside CAttrArray::PrivateFindInl. Rcx (this) pointer is supposed to point to a CAttrArray but it actually pointa to a CAttribute. CAttrArray::PrivateFindInl is only going to perform reads and its return value is going to be discarded by the calling function (CAttrArray::SetParsed). However the actual type confusion happens further down the stack (possibly inside CssParser::RecordProperty) and if CAttrArray::PrivateFindInl returns false (can be controlled by an attacker), then CAttrArray::Set is going to also be called with the wrong type, which might lead to more serious consequences. Crash log (Note: crash log is obtained from an older Edge version as the symbols for the up-to date version are no longer available). ``` (1b24.f18): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. edgehtml!CAttrArray::PrivateFindInl+0xd6: 00007ffa`64acf836 41f644d00380 test byte ptr [r8+rdx*8+3],80h ds:00000003`0005ffbe=?? 0:009> k # Child-SP RetAddr Call Site 00 000000ab`02efb3f0 00007ffa`64c9ee99 edgehtml!CAttrArray::PrivateFindInl+0xd6 01 000000ab`02efb420 00007ffa`64bc795b edgehtml!CAttrArray::SetParsed+0x49 02 000000ab`02efb490 00007ffa`64bc96dc edgehtml!CssParser::RecordProperty+0x24b 03 000000ab`02efb500 00007ffa`64bc83dc edgehtml!CssParser::HandleSingleDeclaration+0x21c 04 000000ab`02efb580 00007ffa`64b5d2cb edgehtml!CssParser::HandleDeclaration+0x9c 05 000000ab`02efb5b0 00007ffa`64b5debe edgehtml!CssParser::Write+0x3b 06 000000ab`02efb5f0 00007ffa`64a1c60c edgehtml!ProcessCSSText+0x112 07 000000ab`02efb670 00007ffa`64a357e3 edgehtml!CStyle::SetCssText+0xbc 08 000000ab`02efb6b0 00007ffa`64d22235 edgehtml!CFastDOM::CCSSStyleDeclaration::Trampoline_Set_cssText+0x77 09 000000ab`02efb700 00007ffa`63886d07 edgehtml!CFastDOM::CCSSStyleDeclaration::Profiler_Set_cssText+0x25 0a 000000ab`02efb730 00007ffa`63962640 chakra!Js::JavascriptExternalFunction::ExternalFunctionThunk+0x177 0b 000000ab`02efb810 00007ffa`63a02209 chakra!Js::LeaveScriptObject<1,1,0>::LeaveScriptObject<1,1,0>+0x180 0c 000000ab`02efb860 00007ffa`6392475e chakra!Js::JavascriptOperators::CallSetter+0xa9 0d 000000ab`02efb900 00007ffa`639ef932 chakra!Js::JavascriptOperators::SetProperty_Internal<0>+0x4de 0e 000000ab`02efb9c0 00007ffa`639ef86f chakra!Js::JavascriptOperators::OP_SetProperty+0xa2 0f 000000ab`02efba10 00007ffa`63986ddb chakra!Js::JavascriptOperators::PatchPutValueWithThisPtrNoFastPath+0x9f 10 000000ab`02efba90 00007ffa`63929a70 chakra!Js::ProfilingHelpers::ProfiledStFld<0>+0x1cb 11 000000ab`02efbb60 00007ffa`6392e800 chakra!Js::InterpreterStackFrame::OP_ProfiledSetProperty<Js::OpLayoutT_ElementCP<Js::LayoutSizePolicy<0> > const >+0x70 12 000000ab`02efbbb0 00007ffa`6392c852 chakra!Js::InterpreterStackFrame::ProcessProfiled+0x340 13 000000ab`02efbc40 00007ffa`63930920 chakra!Js::InterpreterStackFrame::Process+0x142 14 000000ab`02efbca0 00007ffa`63932065 chakra!Js::InterpreterStackFrame::InterpreterHelper+0x4a0 15 000000ab`02efc000 00000219`30f30fb2 chakra!Js::InterpreterStackFrame::InterpreterThunk+0x55 16 000000ab`02efc050 00007ffa`63a17273 0x00000219`30f30fb2 17 000000ab`02efc080 00007ffa`63925763 chakra!amd64_CallFunction+0x93 18 000000ab`02efc0d0 00007ffa`63928260 chakra!Js::JavascriptFunction::CallFunction<1>+0x83 19 000000ab`02efc130 00007ffa`6392ccfd chakra!Js::InterpreterStackFrame::OP_CallI<Js::OpLayoutDynamicProfile<Js::OpLayoutT_CallI<Js::LayoutSizePolicy<0> > > >+0x110 1a 000000ab`02efc180 00007ffa`6392c8b7 chakra!Js::InterpreterStackFrame::ProcessUnprofiled+0x32d 1b 000000ab`02efc210 00007ffa`63930920 chakra!Js::InterpreterStackFrame::Process+0x1a7 1c 000000ab`02efc270 00007ffa`63932065 chakra!Js::InterpreterStackFrame::InterpreterHelper+0x4a0 1d 000000ab`02efc5c0 00000219`30f30fba chakra!Js::InterpreterStackFrame::InterpreterThunk+0x55 1e 000000ab`02efc610 00007ffa`63a17273 0x00000219`30f30fba 1f 000000ab`02efc640 00007ffa`63925763 chakra!amd64_CallFunction+0x93 20 000000ab`02efc690 00007ffa`6395a4bc chakra!Js::JavascriptFunction::CallFunction<1>+0x83 21 000000ab`02efc6f0 00007ffa`63959a86 chakra!Js::JavascriptFunction::CallRootFunctionInternal+0x104 22 000000ab`02efc7e0 00007ffa`639fc359 chakra!Js::JavascriptFunction::CallRootFunction+0x4a 23 000000ab`02efc850 00007ffa`6395ff21 chakra!ScriptSite::CallRootFunction+0xb5 24 000000ab`02efc8f0 00007ffa`6395badc chakra!ScriptSite::Execute+0x131 25 000000ab`02efc980 00007ffa`64be08dd chakra!ScriptEngineBase::Execute+0xcc 26 000000ab`02efca20 00007ffa`64be0828 edgehtml!CJScript9Holder::ExecuteCallbackDirect+0x3d 27 000000ab`02efca70 00007ffa`64b1a8c7 edgehtml!CJScript9Holder::ExecuteCallback+0x18 28 000000ab`02efcab0 00007ffa`64b1a6b7 edgehtml!CListenerDispatch::InvokeVar+0x1fb 29 000000ab`02efcc30 00007ffa`64bdf22a edgehtml!CListenerDispatch::Invoke+0xdb 2a 000000ab`02efccb0 00007ffa`64cb40d2 edgehtml!CEventMgr::_InvokeListeners+0x2ca 2b 000000ab`02efce10 00007ffa`64b30ac5 edgehtml!CEventMgr::_InvokeListenersOnWindow+0x66 2c 000000ab`02efce40 00007ffa`64b30553 edgehtml!CEventMgr::Dispatch+0x405 2d 000000ab`02efd110 00007ffa`64c0d8da edgehtml!CEventMgr::DispatchEvent+0x73 2e 000000ab`02efd160 00007ffa`64c4ba12 edgehtml!COmWindowProxy::Fire_onload+0x14e 2f 000000ab`02efd270 00007ffa`64c4a6a6 edgehtml!CMarkup::OnLoadStatusDone+0x376 30 000000ab`02efd330 00007ffa`64c4a21f edgehtml!CMarkup::OnLoadStatus+0x112 31 000000ab`02efd360 00007ffa`64bd5b43 edgehtml!CProgSink::DoUpdate+0x3af 32 000000ab`02efd7f0 00007ffa`64bd7300 edgehtml!GlobalWndOnMethodCall+0x273 33 000000ab`02efd8f0 00007ffa`7f751c24 edgehtml!GlobalWndProc+0x130 34 000000ab`02efd9b0 00007ffa`7f75156c user32!UserCallWinProcCheckWow+0x274 35 000000ab`02efdb10 00007ffa`75cecdf1 user32!DispatchMessageWorker+0x1ac 36 000000ab`02efdb90 00007ffa`75cec3b1 EdgeContent!CBrowserTab::_TabWindowThreadProc+0x4a1 37 000000ab`02effde0 00007ffa`768f9596 EdgeContent!LCIETab_ThreadProc+0x2c1 38 000000ab`02efff00 00007ffa`81538364 iertutil!SettingStore::CSettingsBroker::SetValue+0x246 39 000000ab`02efff30 00007ffa`81b170d1 KERNEL32!BaseThreadInitThunk+0x14 3a 000000ab`02efff60 00000000`00000000 ntdll!RtlUserThreadStart+0x21 0:009> r rax=0000000000003ffd rbx=0000000000000002 rcx=0000021128e64cf0 rdx=000000000000bff7 rsi=0000000000003ffd rdi=0000000000000000 rip=00007ffa64acf836 rsp=000000ab02efb3f0 rbp=0000000000000002 r8=0000000300000003 r9=00000000800114a4 r10=0000000000000000 r11=0000000000007ffa r12=0000021932328fe0 r13=0000021127f66f01 r14=0000021128e64c88 r15=0000000000000000 iopl=0 nv up ei pl nz na pe nc cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010202 edgehtml!CAttrArray::PrivateFindInl+0xd6: 00007ffa`64acf836 41f644d00380 test byte ptr [r8+rdx*8+3],80h ds:00000003`0005ffbe=?? ```
idSSV:96252
last seen2017-11-19
modified2017-06-27
published2017-06-27
reporterRoot
sourcehttps://www.seebug.org/vuldb/ssvid-96252
titleMicrosoft Edge: Type confusion in CssParser::RecordProperty(CVE-2017-8496)

The Hacker News

idTHN:4220A2AF1052C7831C6C2F36BFA4CD47
last seen2018-01-27
modified2017-06-14
published2017-06-13
reporterSwati Khandelwal
sourcehttps://thehackernews.com/2017/06/security-patch-tuesday.html
titleMicrosoft Issues Updates for 96 Vulnerabilities You Need to Patch this Month

References