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发信人: Version (Who makes history and why), 信区: Program
标 题: Microsoft Knowledge Base Article Q311485(转寄)[转载]
发信站: 荔园晨风BBS站 (Sat Mar 15 17:51:54 2003), 站内信件
【 以下文字转载自 Version 的信箱 】
【 原文由 pcAngel(风过留枫) 所发表 】
发信人: tianlynn (什么侣移甙嗽愕?), 信区: Programming
标 题: Microsoft Knowledge Base Article Q311485
发信站: BBS 水木清华站 (Wed Jan 8 14:01:32 2003), 转信
A Program that Passes Invalid Screen Size Parameters Causes an Access Viola
tion
The information in this article applies to:
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional SP2
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional
This article was previously published under Q311486
SYMPTOMS
The versions of Windows listed at the beginning of this article contain the
following vulnerability: When you run a local program that passes invalid pa
rameters that are smaller than the screen size, this causes an access violat
ion (AV). As a result, Windows stops responding (crashes).
Sample Code
The following uncompiled sample code is known to cause this behavior:
#include <stdio.h>
int main(void)
{
while(1)
printf("\t\t\b\b\b\b\b\b");
return 0;
}
CAUSE
This behavior occurs because Windows checks invalid parameters that are larg
er than the screen size, but does not currently check invalid parameters tha
t are smaller than the screen size.
RESOLUTION
Windows XP
To resolve this problem, obtain the latest service pack for Windows XP. For
additional information, click the following article number to view the artic
le in the Microsoft Knowledge Base:
322389 How to Obtain the Latest Windows XP Service Pack
The English-language version of this fix should have the following file attr
ibutes or later:
Date Time Version Size File name
----------------------------------------------------
02-Nov-2001 21:43 5.1.2600.19 272,384 Winsrv.dll
02-Nov-2001 21:43 5.1.2600.19 272,384 Winsrv.dll
Windows 2000
To resolve this problem, obtain the latest service pack for Windows 2000. Fo
r additional information, click the following article number to view the art
icle in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English-language version of this fix should have the following file attr
ibutes or later:
Date Time Version Size File name
----------------------------------------------------------
05-Nov-2001 18:57 5.0.2195.4572 222,480 Gdi32.dll
05-Nov-2001 18:57 5.0.2195.4272 731,920 Kernel32.dll
25-Jun-2001 18:17 3.10.0.103 47,808 User.exe
05-Nov-2001 18:57 5.0.2195.4314 402,192 User32.dll
05-Nov-2001 18:57 5.0.2195.4345 371,984 Userenv.dll
27-Sep-2001 15:00 5.0.2195.4426 1,731,536 Win32k.sys
30-Oct-2001 18:17 5.0.2195.4575 178,960 Winlogon.exe
05-Nov-2001 18:58 5.0.2195.4553 243,472 Winsrv.dll
05-Nov-2001 18:58 5.0.2195.4272 731,920 Kernel32.dll
05-Nov-2001 18:58 5.0.2195.4426 1,731,536 Win32k.sys
05-Nov-2001 18:58 5.0.2195.4553 243,472 Winsrv.dll
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products tha
t are listed at the beginning of this article. This problem was first correc
ted in Microsoft Windows 2000 Service Pack 3 (SP3) and Microsoft Windows XP
Service Pack 1 (SP1).
MORE INFORMATION
This update causes Windows to check lower boundaries. The Winsrv.dll file is
directly affected by this update, but the following files are included beca
use of dependency issues:
User.exe
User32.dll
Win32k.sys
Gdi32.dll
Userenv.dll
Kernel32.dll
Winlogon.exe
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