Ethereal BGP解析器无限循环远程拒绝服务攻击漏洞

漏洞信息详情

Ethereal BGP解析器无限循环远程拒绝服务攻击漏洞

漏洞简介

Ethereal是一款免费开放源代码的网络协议分析程序,可使用在Unix和Windows操作系统下。
Ethereal中的BGP解析器在消息长度为负值时处理不正确,远程攻击者利用这个漏洞进行发送恶意包使Ethereal崩溃,导致拒绝服务攻击。
Ethereal中的BGP解析器用于对边界网关协议(BGP)进行解码。由于对消息包长度负正处理不匹配,攻击者可以构建包含长度为负值的的BGP消息包并提交给有Ethereal监听的网络中,可导致Ethereal崩溃。

漏洞公告

厂商补丁:
RedHat
——
RedHat已经为此发布了一个安全公告(RHSA-2002:290-07)以及相应补丁:

RHSA-2002:290-07:Updated Ethereal packages are available

链接:https://www.redhat.com/support/errata/RHSA-2002-290.html” target=”_blank”>https://www.redhat.com/support/errata/RHSA-2002-290.html

补丁下载:

Red Hat Upgrade ethereal-0.9.8-0.72.0.i386.rpm

ftp://updates.redhat.com/7.2/en/os/i386/ethereal-0.9.8-0.72.0.i386.rpm

Red Hat Upgrade ethereal-gnome-0.9.8-0.72.0.i386.rpm

ftp://updates.redhat.com/7.2/en/os/i386/ethereal-gnome-0.9.8-0.72.0.i386.rpm

Red Hat Upgrade ethereal-0.9.8-0.72.0.ia64.rpm

ftp://updates.redhat.com/7.2/en/os/ia64/ethereal-0.9.8-0.72.0.ia64.rpm

Red Hat Upgrade ethereal-gnome-0.9.8-0.72.0.ia64.rpm

ftp://updates.redhat.com/7.2/en/os/ia64/ethereal-gnome-0.9.8-0.72.0.ia64.rpm

Red Hat Upgrade ethereal-0.9.8-0.73.0.i386.rpm

ftp://updates.redhat.com/7.3/en/os/i386/ethereal-0.9.8-0.73.0.i386.rpm

Red Hat Upgrade ethereal-gnome-0.9.8-0.73.0.i386.rpm

ftp://updates.redhat.com/7.3/en/os/i386/ethereal-gnome-0.9.8-0.73.0.i386.rpm

Red Hat Upgrade ethereal-0.9.8-0.80.0.i386.rpm

ftp://updates.redhat.com/8.0/en/os/i386/ethereal-0.9.8-0.80.0.i386.rpm

Red Hat Upgrade ethereal-gnome-0.9.8-0.80.0.i386.rpm

ftp://updates.redhat.com/8.0/en/os/i386/ethereal-gnome-0.9.8-0.80.0.i386.rpm
Ethereal Group
————–
目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载:

Ethereal Group Upgrade Ethereal 0.9.8

http://www.ethereal.com/download.html” target=”_blank”>
http://www.ethereal.com/download.html

参考网址

来源: REDHAT
名称: RHSA-2002:290
链接:http://www.redhat.com/support/errata/RHSA-2002-290.html

来源: www.ethereal.com
链接:http://www.ethereal.com/appnotes/enpa-sa-00007.html

来源: www.ethereal.com
链接:http://www.ethereal.com/cgi-bin/viewcvs.cgi/ethereal/packet-bgp.c.diff?r1=1.68&r2=1.69

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