Linux Kernel Broadcom 5820 Cryptonet驱动整数溢出漏洞

漏洞信息详情

Linux Kernel Broadcom 5820 Cryptonet驱动整数溢出漏洞

漏洞简介

Linux是一款开放源代码操作系统。
Linux Kernel Broadcom 5820 Cryptonet驱动存在一个整数溢出问题,本地攻击者可以利用这个漏洞对系统进行拒绝服务攻击或提升权限。
此驱动程序包含ubsec_ioctl()函数用于设置驱动的操作参数,函数接收用户提供数据并拷贝到内核空间。当拷贝数据时,用户提供的长度值用于一个计算操作,但由于对数据缺少充分检查,当分配缓冲区空间时此计算可导致整数溢出。
利用这个漏洞可导致系统崩溃或可能以内核上下文执行任意指令。

漏洞公告

厂商补丁:
RedHat
——
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:

RedHat Fedora Core1:

RedHat Upgrade kernel-2.4.22-1.2197.nptl.x86_64.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-smp-2.4.22-1.2197.nptl.x86_64.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-debuginfo-2.4.22-1.2197.nptl.x86_64.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-BOOT-2.4.22-1.2197.nptl.i386.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-debuginfo-2.4.22-1.2197.nptl.i386.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-2.4.22-1.2197.nptl.i586.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-smp-2.4.22-1.2197.nptl.i586.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-debuginfo-2.4.22-1.2197.nptl.i586.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-2.4.22-1.2197.nptl.i686.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-smp-2.4.22-1.2197.nptl.i686.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-2.4.22-1.2197.nptl.athlon.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-smp-2.4.22-1.2197.nptl.athlon.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

RedHat Upgrade kernel-debuginfo-2.4.22-1.2197.nptl.athlon.rpm

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/” target=”_blank”>
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/1/

RedHat Fedora Core 1

参考网址

来源: XF
名称: bcm5820-adddsabufbytes-integer-bo(16459)
链接:http://xforce.iss.net/xforce/xfdb/16459

来源: REDHAT
名称: RHSA-2004:549
链接:http://www.redhat.com/support/errata/RHSA-2004-549.html

来源: BID
名称: 10599
链接:http://www.securityfocus.com/bid/10599

来源: REDHAT
名称: RHSA-2005:283
链接:http://www.redhat.com/support/errata/RHSA-2005-283.html

来源: OVAL
名称: oval:org.mitre.oval:def:9773
链接:http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:9773

来源: BUGTRAQ
名称: 20040623 Linux Broadcom 5820 Cryptonet Driver Integer Overflow
链接:http://marc.theaimsgroup.com/?l=bugtraq&m=108802653409053&w=2

来源: CIAC
名称: P-047
链接:http://www.ciac.org/ciac/bulletins/p-047.shtml

来源: SECUNIA
名称: 11936
链接:http://secunia.com/advisories/11936

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