发布时间 :1999-11-17 00:00:00
修订时间 :2008-09-10 15:02:42

[原文]Buffer overflow in Microsoft Rich Text Format (RTF) reader allows attackers to cause a denial of service via a malformed control word.



- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/o:microsoft:windows_2000Microsoft Windows 2000
cpe:/o:microsoft:windows_98::goldMicrosoft windows 98_gold
cpe:/o:microsoft:windows_nt:4.0Microsoft Windows NT 4.0

- OVAL (用于检测的技术细节)


- 官方数据库链接
(官方数据源) MITRE
(官方数据源) NVD
(官方数据源) CNNVD

- 其它链接及资源
(UNKNOWN)  MS  MS00-005;%5BLN%5D;Q249973
(UNKNOWN)  MSKB  Q249973
(UNKNOWN)  XF  win-malformed-rtf-control-word

- 漏洞信息

中危 缓冲区溢出
1999-11-17 00:00:00 2005-07-27 00:00:00

- 公告与补丁


- 漏洞信息 (19633)

Windows 95/98/Enterprise Server 4/NT Server 4/Terminal Server 4/Workstation 4 Riched Buffer Overflow (EDBID:19633)
windows local
1999-11-17 Verified
0 Pauli Ojanpera
N/A [点击下载]
Windows 95/98,Windows NT Enterprise Server 4.0 SP1/SP2/SP3/SP4/SP5/SP6,Windows NT Server 4.0 SP1/SP2/SP3/SP4/SP5/SP6/SP6a,Windows NT Terminal Server 4.0 SP1/SP2/SP3/SP4/SP5/SP6,Windows NT Workstation 4.0 SP1/SP2/SP3/SP4/SP5/SP6/SP6a Riched Buffer Overflow Vulnerability


Riched20.dll and Riched32.dll, which Windows uses to parse Rich Text Forrmat files, have an unchecked buffer which allows arbitrary code to be executed. The code can be put into an .rtf file and emailed to the victim. Then if the victim opens the document, the code will be run at the same privilege level as the user.

NOTE: It has been reported on the Bugtraq mailing list that the patch provided by Microsoft does not completely fix the problem. A .rtf file with 1000 characters (instead of the original 32) will still crash the application reading the .rtf file. 

This will crash Wordpad:
Create an .rtf file, then open it in notepad. The first line will look something like this:
Now insert 32 characters after the .rtf identifier:
When this file is opened in Wordpad, the program will crash.		

- 漏洞信息

Microsoft Rich Text Format (RTF) Reader Malformed Control Word Overflow
Input Manipulation
Loss of Integrity

- 漏洞描述

Unknown or Incomplete

- 时间线

2000-01-17 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete