<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft browsers, and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment.</p> <p>The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.</p>

A race condition is present in the crash generation server used to generate data for the crash reporter. This issue can lead to a use-after-free in the main process, resulting in a potentially exploitable crash and a sandbox escape. *Note: this vulnerability only affects Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Trend Micro Anti-Threat Toolkit (ATTK) versions 1.62.0.1218 and below have a vulnerability that may allow an attacker to place malicious files in the same directory, potentially leading to arbitrary remote code execution (RCE) when executed.

Argument injection vulnerability in the Windows Object Packager (packager.exe) in Microsoft Windows XP SP1 and SP2 and Server 2003 SP1 and earlier allows remote user-assisted attackers to execute arbitrary commands via a crafted file with a "/" (slash) character in the filename of the Command Line property, followed by a valid file extension, which causes the command before the slash to be executed, aka "Object Packager Dialogue Spoofing Vulnerability."

Unspecified vulnerability in Microsoft Excel 2000, 2002, 2003, 2004 for Mac, v.X for Mac, and Excel Viewer 2003 allows user-assisted attackers to execute arbitrary code via a crafted Lotus 1-2-3 file, a different vulnerability than CVE-2006-2387 and CVE-2006-3875.

Microsoft Internet Explorer 5.01 through 6 allows remote attackers to execute arbitrary code via crafted layout combinations involving DIV tags and HTML CSS float properties that trigger memory corruption, aka "HTML Rendering Memory Corruption Vulnerability."

Unspecified vulnerability in Microsoft Excel 2000, 2002, 2003, 2004 for Mac, v.X for Mac, and Excel Viewer 2003 allows user-assisted attackers to execute arbitrary code via a crafted COLINFO record in an XLS file, a different vulnerability than CVE-2006-2387 and CVE-2006-3867.

Unspecified vulnerability in Microsoft Office XP and 2003 allows remote user-assisted attackers to execute arbitrary code via a malformed Smart Tag.

Microsoft Internet Explorer 6.0 does not properly handle Drag and Drop events, which allows remote user-assisted attackers to execute arbitrary code via a link to an SMB file share with a filename that contains encoded ..\ (%2e%2e%5c) sequences and whose extension contains the CLSID Key identifier for HTML Applications (HTA), aka "Folder GUID Code Execution Vulnerability." NOTE: directory traversal sequences were used in the original exploit, although their role is not clear.

Buffer overflow in Microsoft Visual Basic for Applications (VBA) SDK 6.0 through 6.4, as used by Microsoft Office 2000 SP3, Office XP SP3, Project 2000 SR1, Project 2002 SP1, Access 2000 Runtime SP3, Visio 2002 SP2, and Works Suite 2004 through 2006, allows user-assisted attackers to execute arbitrary code via unspecified document properties that are not verified when VBA is invoked to open documents.

mso.dll, as used by Microsoft PowerPoint 2000 through 2003, allows user-assisted attackers to execute arbitrary commands via a malformed shape container in a PPT file that leads to memory corruption, as exploited by Trojan.PPDropper.B, a different issue than CVE-2006-1540 and CVE-2006-3493.

Microsoft Internet Explorer 5.01 SP4 and 6 does not properly handle various HTML layout component combinations, which allows user-assisted remote attackers to execute arbitrary code via a crafted HTML file that leads to memory corruption, aka "HTML Rendering Memory Corruption Vulnerability."

Buffer overflow in LsCreateLine function (mso_203) in mso.dll and mso9.dll, as used by Microsoft Word and possibly other products in Microsoft Office 2003, 2002, and 2000, allows remote user-assisted attackers to cause a denial of service (crash) via a crafted Word DOC or other Office file type. NOTE: this issue was originally reported to allow code execution, but on 20060710 Microsoft stated that code execution is not possible, and the original researcher agrees.

Microsoft Excel allows user-assisted attackers to execute arbitrary javascript and redirect users to arbitrary sites via an Excel spreadsheet with an embedded Shockwave Flash Player ActiveX Object, which is automatically executed when the user opens the spreadsheet.

Heap-based buffer overflow in Windows Live Messenger 8.0 allows user-assisted attackers to execute arbitrary code via a crafted Contact List (.ctt) file, which triggers the overflow when it is imported by the user.

Unspecified vulnerability in mso.dll in Microsoft PowerPoint 2003 allows user-assisted attackers to execute arbitrary code via a crafted PowerPoint file. NOTE: due to the lack of available details as of 20060717, it is unclear how this is related to CVE-2006-3656, CVE-2006-3660, and CVE-2006-3590, although it is possible that they are all different.

Unspecified vulnerability in Microsoft Excel 2000, 2002, 2003, 2004 for Mac, v.X for Mac, Excel Viewer 2003, and Microsoft Works Suite 2004 through 2006 allows user-assisted attackers to execute arbitrary code via a crafted DATETIME record in an XLS file, a different vulnerability than CVE-2006-3867 and CVE-2006-3875.

Microsoft Internet Explorer before Windows XP Service Pack 2 and Windows Server 2003 Service Pack 1, when Prompt is configured in Security Settings, uses modal dialogs to verify that a user wishes to run an ActiveX control or perform other risky actions, which allows user-assisted remote attackers to construct a race condition that tricks a user into clicking an object or pressing keys that are actually applied to a "Yes" approval for executing the control.

Heap-based buffer overflow in Microsoft Windows Help winhlp32.exe allows user-assisted attackers to execute arbitrary code via crafted embedded image data in a .hlp file.

Unspecified vulnerability in the RDS.Dataspace ActiveX control, which is contained in ActiveX Data Objects (ADO) and distributed in Microsoft Data Access Components (MDAC) 2.7 and 2.8, allows remote attackers to execute arbitrary code via unknown attack vectors.

Stack-based buffer overflow in Microsoft Excel 2000, 2002, and 2003, in Microsoft Office 2000 SP3 and other packages, allows user-assisted attackers to execute arbitrary code via an Excel file with a malformed record with a modified length value, which leads to memory corruption.

By design, Microsoft Visual Studio 2005 automatically executes code in the Load event of a user-defined control (UserControl1_Load function), which allows user-assisted attackers to execute arbitrary code by tricking the user into opening a malicious Visual Studio project file.

Unspecified vulnerability in Windows Explorer in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 allows remote attackers to execute arbitrary code via attack vectors involving COM objects and "crafted files and directories," aka the "Windows Shell Vulnerability."

Unspecified vulnerability in Microsoft Excel 2000, 2002, and 2003, in Microsoft Office 2000 SP3 and other packages, allows user-assisted attackers to execute arbitrary code via an Excel file with a malformed graphic, which leads to memory corruption.

Unspecified vulnerability in Microsoft Excel 2000, 2002, and 2003, in Microsoft Office 2000 SP3 and other packages, allows user-assisted attackers to execute arbitrary code via an Excel file with a malformed description, which leads to memory corruption.

Buffer overflow in Microsoft Outlook Express 5.5 and 6 allows remote attackers to execute arbitrary code via a crafted Windows Address Book (WAB) file containing "certain Unicode strings" and modified length values.

Unspecified vulnerability in Microsoft Excel 2000, 2002, and 2003, in Microsoft Office 2000 SP3 and other packages, allows user-assisted attackers to execute arbitrary code via a BIFF parsing format file containing malformed BOOLERR records that lead to memory corruption, probably involving invalid pointers.

Buffer overflow in Microsoft Office 2000 SP3, XP SP3, and other versions and packages, allows user-assisted attackers to execute arbitrary code via a routing slip that is longer than specified by the provided length field, as exploited by malware such as TROJ_MDROPPER.BH and Trojan.PPDropper.E in attacks against PowerPoint.

Race condition in Microsoft Internet Explorer allows user-assisted attackers to overwrite arbitrary files and possibly execute code by tricking a user into performing a drag-and-drop action from certain objects, such as file objects within a folder view, then predicting the drag action, and re-focusing to a malicious window.

The LDAP client on Microsoft Windows 2000 before Update Rollup 1 for SP4 accepts certificates using LDAP Secure Sockets Layer (LDAPS) even when the Certificate Authority (CA) is not trusted, which could allow attackers to trick users into believing that they are accessing a trusted site.

Win32 File Enumeration Remote Code Execution Vulnerability

Multiple design errors in Microsoft Internet Explorer 5.01, 5.5, and 6 allow user-assisted attackers to execute arbitrary code by (1) overlaying a malicious new window above a file download box, then (2) using a keyboard shortcut and delaying the display of the file download box until the user hits a shortcut that activates the "Run" button, aka "File Download Dialog Box Manipulation Vulnerability."

An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft Edge Elevation of Privilege Vulnerability." This CVE ID is unique from CVE-2017-0241.

Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a web page with embedded CLSIDs that reference certain COM objects that are not ActiveX controls, including (1) devenum.dll, (2) diactfrm.dll, (3) wmm2filt.dll, (4) fsusd.dll, (5) dmdskmgr.dll, (6) browsewm.dll, (7) browseui.dll, (8) shell32.dll, (9) mshtml.dll, (10) inetcfg.dll, (11) infosoft.dll, (12) query.dll, (13) syncui.dll, (14) clbcatex.dll, (15) clbcatq.dll, (16) comsvcs.dll, and (17) msconf.dll, which causes memory corruption, aka "COM Object Instantiation Memory Corruption Vulnerability," a different vulnerability than CVE-2005-2087.

Unknown vulnerability in Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to execute arbitrary code via a web site or an HTML e-mail containing a crafted JPEG image that causes memory corruption, aka "JPEG Image Rendering Memory Corruption Vulnerability".

Buffer overflow in Microsoft Word 2000, Word 2002, and Word 2003 allows remote attackers to execute arbitrary code via a crafted document.

Race condition in the memory management routines in the DHTML object processor in Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to execute arbitrary code via a malicious web page or HTML e-mail, aka "DHTML Object Memory Corruption Vulnerability".

Microsoft Agent allows remote attackers to spoof trusted Internet content and execute arbitrary code by disguising security prompts on a malicious Web page.

Buffer overflow in the PNG image rendering component of Microsoft Internet Explorer allows remote attackers to execute arbitrary code via a crafted PNG file.

Microsoft Internet Explorer 5.0 through 6.0 allows remote attackers to bypass cross-frame scripting restrictions and capture keyboard events from other domains via an HTML document with Javascript that is outside a frameset that includes the target domain, then forcing the frameset to maintain focus. NOTE: the discloser claimed that the vendor does not categorize this as a vulnerability, but it can be used in a spoofing scenario; the discloser provides alternate scenarios. Spoofing scenarios are currently included in CVE.

Internet Explorer 5.01, 5.5, and 6 allows remote attackers to spoof a less restrictive security zone and execute arbitrary code via an HTML page containing URLs that contain hostnames that have been double hex encoded, which are decoded twice to generate a malicious hostname, aka the "URL Decoding Zone Spoofing Vulnerability."

Trend Micro Anti-Threat Toolkit (ATTK) versions 1.62.0.1218 and below have a vulnerability that may allow an attacker to place malicious files in the same directory, potentially leading to arbitrary remote code execution (RCE) when executed. Another attack vector similar to CVE-2019-9491 was idenitfied and resolved in version 1.62.0.1228 of the tool.

Internet Explorer 5.01, 5.5, and 6 does not properly validate certain URLs in Channel Definition Format (CDF) files, which allows remote attackers to obtain sensitive information or execute arbitrary code, aka the "Channel Definition Format (CDF) Cross Domain Vulnerability."

pnxr3260.dll in the RealOne 2.0 build 6.0.11.868 browser plugin, as used in Internet Explorer, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted embed tag.

Microsoft Internet Explorer 10 and 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Microsoft Browser Memory Corruption Vulnerability."

Microsoft Internet Explorer 10 and 11 mishandles integrity settings and zone settings, which allows remote attackers to bypass a sandbox protection mechanism via a crafted web site, aka "Internet Explorer Elevation of Privilege Vulnerability."

Microsoft Internet Explorer 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Microsoft Browser Memory Corruption Vulnerability."

Heap-based buffer overflow in winhlp32.exe in Windows NT, Windows 2000 through SP4, Windows XP through SP2, and Windows 2003 allows remote attackers to execute arbitrary code via a crafted .hlp file.

Help Center (HelpCtr.exe) may allow remote attackers to read or execute arbitrary files via an "http://" or "file://" argument to the topic parameter in an hcp:// URL. NOTE: since the initial report of this problem, several researchers have been unable to reproduce this issue.