发布日期：2003-06-03
更新日期：2003-06-11

受影响系统：

RedHat Linux 9.0
RedHat Linux 8.0
RedHat Linux 7.3
RedHat Linux 7.2
RedHat Linux 7.1
RedHat Linux 7.0

描述：

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BUGTRAQ  ID: 7795

RedHat是一款免费开放源代码的Linux操作系统。

RedHat Linux EXT3文件系统存在数据破坏问题，本地攻击者可以利用这个漏洞可以使任意文件破坏，造成拒绝服务攻击。

不过此漏洞可能只在极少的情况下引发，如在超多，复杂的I/O装载，由于一个文件同时解开连接，并且相对应映射文件块被重新分配时可造成数据破坏。利用这个漏洞，攻击者可对本地系统进行拒绝服务攻击。

<*来源：Red Hat Security Advisory
  
  链接：https://www.redhat.com/support/errata/RHSA-2003-187.html
*>

建议：

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厂商补丁：

RedHat
------
RedHat已经为此发布了一个安全公告（RHSA-2003:187-01）以及相应补丁:
RHSA-2003:187-01：Updated 2.4 kernel fixes vulnerabilities and driver bugs
链接：https://www.redhat.com/support/errata/RHSA-2003-187.html

补丁下载：

Red Hat Linux 7.1:

SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/kernel-2.4.20-18.7.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/quota-3.06-9.71.src.rpm

athlon:
ftp://updates.redhat.com/7.1/en/os/athlon/kernel-2.4.20-18.7.athlon.rpm
ftp://updates.redhat.com/7.1/en/os/athlon/kernel-smp-2.4.20-18.7.athlon.rpm

i386:
ftp://updates.redhat.com/7.1/en/os/i386/kernel-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-source-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-doc-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-BOOT-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/quota-3.06-9.71.i386.rpm

i586:
ftp://updates.redhat.com/7.1/en/os/i586/kernel-2.4.20-18.7.i586.rpm
ftp://updates.redhat.com/7.1/en/os/i586/kernel-smp-2.4.20-18.7.i586.rpm

i686:
ftp://updates.redhat.com/7.1/en/os/i686/kernel-2.4.20-18.7.i686.rpm
ftp://updates.redhat.com/7.1/en/os/i686/kernel-smp-2.4.20-18.7.i686.rpm
ftp://updates.redhat.com/7.1/en/os/i686/kernel-bigmem-2.4.20-18.7.i686.rpm

Red Hat Linux 7.2:

SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/kernel-2.4.20-18.7.src.rpm
ftp://updates.redhat.com/7.2/en/os/SRPMS/quota-3.06-9.7.src.rpm

athlon:
ftp://updates.redhat.com/7.2/en/os/athlon/kernel-2.4.20-18.7.athlon.rpm
ftp://updates.redhat.com/7.2/en/os/athlon/kernel-smp-2.4.20-18.7.athlon.rpm

i386:
ftp://updates.redhat.com/7.2/en/os/i386/kernel-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/kernel-source-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/kernel-doc-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/kernel-BOOT-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.2/en/os/i386/quota-3.06-9.7.i386.rpm

i586:
ftp://updates.redhat.com/7.2/en/os/i586/kernel-2.4.20-18.7.i586.rpm
ftp://updates.redhat.com/7.2/en/os/i586/kernel-smp-2.4.20-18.7.i586.rpm

i686:
ftp://updates.redhat.com/7.2/en/os/i686/kernel-2.4.20-18.7.i686.rpm
ftp://updates.redhat.com/7.2/en/os/i686/kernel-smp-2.4.20-18.7.i686.rpm
ftp://updates.redhat.com/7.2/en/os/i686/kernel-bigmem-2.4.20-18.7.i686.rpm

Red Hat Linux 7.3:

SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/kernel-2.4.20-18.7.src.rpm
ftp://updates.redhat.com/7.3/en/os/SRPMS/quota-3.06-9.7.src.rpm

athlon:
ftp://updates.redhat.com/7.3/en/os/athlon/kernel-2.4.20-18.7.athlon.rpm
ftp://updates.redhat.com/7.3/en/os/athlon/kernel-smp-2.4.20-18.7.athlon.rpm

i386:
ftp://updates.redhat.com/7.3/en/os/i386/kernel-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.3/en/os/i386/kernel-source-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.3/en/os/i386/kernel-doc-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.3/en/os/i386/kernel-BOOT-2.4.20-18.7.i386.rpm
ftp://updates.redhat.com/7.3/en/os/i386/quota-3.06-9.7.i386.rpm

i586:
ftp://updates.redhat.com/7.3/en/os/i586/kernel-2.4.20-18.7.i586.rpm
ftp://updates.redhat.com/7.3/en/os/i586/kernel-smp-2.4.20-18.7.i586.rpm

i686:
ftp://updates.redhat.com/7.3/en/os/i686/kernel-2.4.20-18.7.i686.rpm
ftp://updates.redhat.com/7.3/en/os/i686/kernel-smp-2.4.20-18.7.i686.rpm
ftp://updates.redhat.com/7.3/en/os/i686/kernel-bigmem-2.4.20-18.7.i686.rpm

Red Hat Linux 8.0:

SRPMS:
ftp://updates.redhat.com/8.0/en/os/SRPMS/kernel-2.4.20-18.8.src.rpm

athlon:
ftp://updates.redhat.com/8.0/en/os/athlon/kernel-2.4.20-18.8.athlon.rpm
ftp://updates.redhat.com/8.0/en/os/athlon/kernel-smp-2.4.20-18.8.athlon.rpm

i386:
ftp://updates.redhat.com/8.0/en/os/i386/kernel-2.4.20-18.8.i386.rpm
ftp://updates.redhat.com/8.0/en/os/i386/kernel-source-2.4.20-18.8.i386.rpm
ftp://updates.redhat.com/8.0/en/os/i386/kernel-doc-2.4.20-18.8.i386.rpm
ftp://updates.redhat.com/8.0/en/os/i386/kernel-BOOT-2.4.20-18.8.i386.rpm

i586:
ftp://updates.redhat.com/8.0/en/os/i586/kernel-2.4.20-18.8.i586.rpm
ftp://updates.redhat.com/8.0/en/os/i586/kernel-smp-2.4.20-18.8.i586.rpm

i686:
ftp://updates.redhat.com/8.0/en/os/i686/kernel-2.4.20-18.8.i686.rpm
ftp://updates.redhat.com/8.0/en/os/i686/kernel-smp-2.4.20-18.8.i686.rpm
ftp://updates.redhat.com/8.0/en/os/i686/kernel-bigmem-2.4.20-18.8.i686.rpm

Red Hat Linux 9:

SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/kernel-2.4.20-18.9.src.rpm

athlon:
ftp://updates.redhat.com/9/en/os/athlon/kernel-2.4.20-18.9.athlon.rpm
ftp://updates.redhat.com/9/en/os/athlon/kernel-smp-2.4.20-18.9.athlon.rpm

i386:
ftp://updates.redhat.com/9/en/os/i386/kernel-2.4.20-18.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-source-2.4.20-18.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-doc-2.4.20-18.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-BOOT-2.4.20-18.9.i386.rpm

i586:
ftp://updates.redhat.com/9/en/os/i586/kernel-2.4.20-18.9.i586.rpm
ftp://updates.redhat.com/9/en/os/i586/kernel-smp-2.4.20-18.9.i586.rpm

i686:
ftp://updates.redhat.com/9/en/os/i686/kernel-2.4.20-18.9.i686.rpm
ftp://updates.redhat.com/9/en/os/i686/kernel-smp-2.4.20-18.9.i686.rpm
ftp://updates.redhat.com/9/en/os/i686/kernel-bigmem-2.4.20-18.9.i686.rpm

可使用下列命令安装补丁：

rpm -Fvh [文件名]

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