CVE-2003-0071
CVSS2.1
发布时间 :2003-03-03 00:00:00
修订时间 :2016-10-17 22:29:08
NMCOS    

[原文]The DEC UDK processing feature in the xterm terminal emulator in XFree86 4.2.99.4 and earlier allows attackers to cause a denial of service via a certain character escape sequence that causes the terminal to enter a tight loop.


[CNNVD]Xterm基于循环的转义序列拒绝服务漏洞(CNNVD-200303-006)

        
        转义序列(escape sequence)是一系列由ASCII转义字符(0x1B)开始的字符序列,并附带特殊的参数构成,转义序列一般原用于控制显示设备如终端,现在扩展在大多数操作系统中允许多种形式的交互。转义序列可以用于更改文本属性(颜色,宽度),移动鼠标位置,重配置键盘,更新窗口标题,或者操作打印机等。
        Xterm终端模拟器不正确过滤部分恶意基于循环的转义序列,本地攻击者可以利用这个漏洞消耗系统大量CPU资源而产生拒绝服务。
        当由DEC UDK处理器实现的模拟终端不充分处理基于循环的转义序列符号,攻击者提交如下的请求可导致Xterm进入恶性循环,造成消耗大量系统资源而产生拒绝服务:
        $ echo -e "\eP0;0|0A/17\x9c"
        

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
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: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
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:/a:xfree86_project:x11r6:4.0.3
cpe:/a:xfree86_project:x11r6:4.2.0
cpe:/a:xfree86_project:x11r6:4.2.1
cpe:/a:xfree86_project:x11r6:4.0
cpe:/a:xfree86_project:x11r6:4.0.1
cpe:/a:xfree86_project:x11r6:4.1.0

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0071
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2003-0071
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200303-006
(官方数据源) CNNVD

- 其它链接及资源

http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0093.html
(VENDOR_ADVISORY)  VULNWATCH  20030224 Terminal Emulator Security Issues
http://marc.info/?l=bugtraq&m=104612710031920&w=2
(UNKNOWN)  BUGTRAQ  20030224 Terminal Emulator Security Issues
http://www.debian.org/security/2003/dsa-380
(UNKNOWN)  DEBIAN  DSA-380
http://www.iss.net/security_center/static/11415.php
(VENDOR_ADVISORY)  XF  terminal-emulator-dec-udk(11415)
http://www.redhat.com/support/errata/RHSA-2003-064.html
(UNKNOWN)  REDHAT  RHSA-2003:064
http://www.redhat.com/support/errata/RHSA-2003-065.html
(UNKNOWN)  REDHAT  RHSA-2003:065
http://www.redhat.com/support/errata/RHSA-2003-066.html
(UNKNOWN)  REDHAT  RHSA-2003:066
http://www.redhat.com/support/errata/RHSA-2003-067.html
(UNKNOWN)  REDHAT  RHSA-2003:067
http://www.securityfocus.com/bid/6950
(UNKNOWN)  BID  6950

- 漏洞信息

Xterm基于循环的转义序列拒绝服务漏洞
低危 设计错误
2003-03-03 00:00:00 2005-05-13 00:00:00
本地  
        
        转义序列(escape sequence)是一系列由ASCII转义字符(0x1B)开始的字符序列,并附带特殊的参数构成,转义序列一般原用于控制显示设备如终端,现在扩展在大多数操作系统中允许多种形式的交互。转义序列可以用于更改文本属性(颜色,宽度),移动鼠标位置,重配置键盘,更新窗口标题,或者操作打印机等。
        Xterm终端模拟器不正确过滤部分恶意基于循环的转义序列,本地攻击者可以利用这个漏洞消耗系统大量CPU资源而产生拒绝服务。
        当由DEC UDK处理器实现的模拟终端不充分处理基于循环的转义序列符号,攻击者提交如下的请求可导致Xterm进入恶性循环,造成消耗大量系统资源而产生拒绝服务:
        $ echo -e "\eP0;0|0A/17\x9c"
        

- 公告与补丁

        厂商补丁:
        XFree86
        -------
        目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本:
        
        http://www.xfree86.org/

- 漏洞信息

60459
XFree86 xterm DEC UDK Processing Feature Window Title Escape Sequence DoS
Remote / Network Access, Context Dependent Denial of Service, Input Manipulation
Loss of Integrity, Loss of Availability

- 漏洞描述

- 时间线

2003-02-24 Unknow
Unknow Unknow

- 解决方案

Products

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Xterm Loop-Based Escape Sequence Denial Of Service Vulnerability
Design Error 6950
No Yes
2003-02-25 12:00:00 2009-07-11 08:06:00
Discovery of these issues is credited to H D Moore and Digital Defense.

- 受影响的程序版本

XFree86 X11R6 4.2.1
+ Immunix Immunix OS 7.3
+ MandrakeSoft Corporate Server 2.1 x86_64
+ MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 9.0
+ RedHat Linux 7.3
+ Slackware Linux 8.1
XFree86 X11R6 4.2 .0
+ Conectiva Linux Enterprise Edition 1.0
+ S.u.S.E. Linux 8.0 i386
+ S.u.S.E. Linux 8.0
+ Turbolinux Turbolinux Server 8.0
+ Turbolinux Turbolinux Workstation 8.0
XFree86 X11R6 4.1 .0
+ Debian Linux 3.0 sparc
+ Debian Linux 3.0 s/390
+ Debian Linux 3.0 ppc
+ Debian Linux 3.0 mipsel
+ Debian Linux 3.0 mips
+ Debian Linux 3.0 m68k
+ Debian Linux 3.0 ia-64
+ Debian Linux 3.0 ia-32
+ Debian Linux 3.0 hppa
+ Debian Linux 3.0 arm
+ Debian Linux 3.0 alpha
+ Debian Linux 3.0
+ Red Hat Enterprise Linux AS 2.1
+ RedHat Advanced Workstation for the Itanium Processor 2.1
+ RedHat Enterprise Linux ES 2.1
+ RedHat Enterprise Linux WS 2.1
+ RedHat Linux 7.2 i386
+ RedHat Linux 7.1 i386
+ Turbolinux Turbolinux Server 7.0
+ Turbolinux Turbolinux Workstation 7.0
XFree86 X11R6 4.0.3
+ RedHat Linux 7.1
XFree86 X11R6 4.0.1
+ RedHat Linux 7.0
XFree86 X11R6 4.0
Sun Linux 5.0.6
RedHat XFree86-Xvfb-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-Xnest-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-xfs-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-xdm-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-xauth-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-twm-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-truetype-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-tools-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-Mesa-libGLU-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-Mesa-libGL-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-libs-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-ISO8859-9-75dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-ISO8859-9-100dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-ISO8859-2-75dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-ISO8859-2-100dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-ISO8859-15-75dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-ISO8859-15-100dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-font-utils-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-doc-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-devel-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-cyrillic-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-base-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-75dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386
RedHat XFree86-100dpi-fonts-4.2.0-72.i386.rpm
+ RedHat Linux 8.0 i386

- 漏洞讨论

The Xterm terminal fails to sufficiently filter certain potentially malicious loop-based escape sequences, leaving the terminal open to attacks including attacker-initiated tight loops that may exhaust CPU resources.

The problem has been reported to result from a lack of sufficient sanitization of potentially malicious escape sequences, which are handled by the DEC UDK processor implementation in the vulnerable terminal.

It is possible to exploit these issues if an attacker can cause malicious escape sequences to be displayed in a terminal window of a vulnerable terminal emulator.

- 漏洞利用

There is no exploit code required.

- 解决方案

Red Hat has released an advisory (RHSA-2003:064-01) to address this issue. Details on obtaining and applying fixes are contained in the referenced advisory.

Red Hat has released a revised advisory (RHSA-2003:067-02) to address this issue. Fixes from the previous advisory (RHSA-2003:067-01) are functional but contain debugging info. The revised advisory includes new fixes that do not contain debugging info. Details on obtaining and applying fixes are contained in the revised advisory.

Sun Linux updates have been released to correct this issue.

Debian has released an advisory (DSA 380-1) with fixes to address this issue. Please see the referenced advisory for more information.


RedHat XFree86-ISO8859-9-75dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-xdm-4.2.0-72.i386.rpm

RedHat XFree86-xfs-4.2.0-72.i386.rpm

RedHat XFree86-base-fonts-4.2.0-72.i386.rpm

RedHat XFree86-Xnest-4.2.0-72.i386.rpm

RedHat XFree86-cyrillic-fonts-4.2.0-72.i386.rpm

RedHat XFree86-ISO8859-15-75dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-libs-4.2.0-72.i386.rpm

RedHat XFree86-tools-4.2.0-72.i386.rpm

RedHat XFree86-devel-4.2.0-72.i386.rpm

RedHat XFree86-truetype-fonts-4.2.0-72.i386.rpm

RedHat XFree86-Xvfb-4.2.0-72.i386.rpm

RedHat XFree86-75dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-4.2.0-72.i386.rpm

RedHat XFree86-ISO8859-9-100dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-Mesa-libGLU-4.2.0-72.i386.rpm

RedHat XFree86-100dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-xauth-4.2.0-72.i386.rpm

RedHat XFree86-ISO8859-2-100dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-twm-4.2.0-72.i386.rpm

RedHat XFree86-Mesa-libGL-4.2.0-72.i386.rpm

RedHat XFree86-ISO8859-15-100dpi-fonts-4.2.0-72.i386.rpm

RedHat XFree86-doc-4.2.0-72.i386.rpm

RedHat XFree86-font-utils-4.2.0-72.i386.rpm

RedHat XFree86-ISO8859-2-75dpi-fonts-4.2.0-72.i386.rpm

XFree86 X11R6 4.1 .0

关于SCAP中文社区

SCAP中文社区是国内第一个以SCAP为主题的中文开放社区。了解更多信息,请查阅[关于本站]

版权声明

CVE/CWE/OVAL均为MITRE公司的注册商标,它们的官方数据源均保存在MITRE公司的相关网站