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BSD内核ARP缓存淹没拒绝服务漏洞


发布时间:2003-09-22
更新时间:2003-10-06
严重程度:
威胁程度:远程拒绝服务
错误类型:边界检查错误
利用方式:服务器模式

BUGTRAQ ID:8689
CVE(CAN) ID:CAN-2003-0804

受影响系统
Apple MacOS X 10.2              
Apple MacOS X 10.2.1            
Apple MacOS X 10.2.2            
Apple MacOS X 10.2.3            
Apple MacOS X 10.2.4            
Apple MacOS X 10.2.5            
Apple MacOS X 10.2.6            
Apple MacOS X 10.2.7            
Apple MacOS X Server 10.2        
Apple MacOS X Server 10.2.1      
Apple MacOS X Server 10.2.2      
Apple MacOS X Server 10.2.3      
Apple MacOS X Server 10.2.4      
Apple MacOS X Server 10.2.5      
Apple MacOS X Server 10.2.6      
Apple MacOS X Server 10.2.7      
FreeBSD FreeBSD 4.0              
FreeBSD FreeBSD 4.1              
FreeBSD FreeBSD 4.1.1            
FreeBSD FreeBSD 4.2              
FreeBSD FreeBSD 4.3              
FreeBSD FreeBSD 4.4              
FreeBSD FreeBSD 4.5              
FreeBSD FreeBSD 4.6              
FreeBSD FreeBSD 4.6.2            
FreeBSD FreeBSD 4.7              
FreeBSD FreeBSD 4.8              
FreeBSD FreeBSD 4.9 -PRERELEASE  
FreeBSD FreeBSD 5.0              
FreeBSD FreeBSD 5.1              
OpenBSD OpenBSD 3.2              
OpenBSD OpenBSD 3.3
未影响系统
Apple MacOS X 10.2.8      
Apple MacOS X Server 10.2.8
详细描述
BSD内核在处理存储ARP缓存的条目时存在漏洞,如果攻击者可以向目标系统发送大量的假造ARP请求时可以导致系统崩溃,从而使系统在手工重启以前不能被使用。此漏洞存在于FreeBSD和MacOS X,其他的衍生于BSD的内核也有可能受此漏洞的影响。

解决方案
厂商已经提供了补丁:

FreeBSD FreeBSD 4.8:
     FreeBSD Patch arp.patch
     ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-03:14/arp.patch
FreeBSD FreeBSD 4.9 -PRERELEASE:
     FreeBSD Patch arp.patch
     ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-03:14/arp.patch
FreeBSD FreeBSD 5.0:
     FreeBSD Patch arp.patch
     ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-03:14/arp.patch
OpenBSD OpenBSD 3.2:
     OpenBSD Patch 021_arp.patch
     ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.2/common/021_arp.patch
OpenBSD OpenBSD 3.3:
     OpenBSD Patch 008_arp.patch
     ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.3/common/008_arp.patch

相关信息
Apple Security Updates
http://www.info.apple.com/usen/security/security_updates.html