受影响系统：

　　Linux kernel 2.4.20
　　- RedHat Linux 9.0
　　- RedHat Linux 8.0
　　- RedHat Linux 7.3
　　- RedHat Linux 7.2
　　- RedHat Linux 7.1

　　详细描述：

　　Linux Kernel是一款开放源代码的操作系统。Redhat Linux Kernel 2.4修补了不少安全漏洞，用户建立进行升级保证安全。

　　修正漏洞包括如下：

　　修正了几个ioctls RTC驱动存在的数据泄露。
　　修正了部分"--reject-with tcp-reset" IPTABLES规则故障。
　　修正了初始化部分接口可导致内核故障。

　　补丁下载：

Red Hat Linux 7.1：

SRPMS：
ftp：//updates.redhat.com/7.1/en/os/SRPMS/kernel-2.4.20-27.7.src.rpm

athlon：
ftp：//updates.redhat.com/7.1/en/os/athlon/kernel-2.4.20-27.7.athlon.rpm
ftp：//updates.redhat.com/7.1/en/os/athlon/kernel-smp-2.4.20-27.7.athlon.rpm

i386：
ftp：//updates.redhat.com/7.1/en/os/i386/kernel-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.1/en/os/i386/kernel-source-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.1/en/os/i386/kernel-doc-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.1/en/os/i386/kernel-BOOT-2.4.20-27.7.i386.rpm

i586：
ftp：//updates.redhat.com/7.1/en/os/i586/kernel-2.4.20-27.7.i586.rpm
ftp：//updates.redhat.com/7.1/en/os/i586/kernel-smp-2.4.20-27.7.i586.rpm

i686：
ftp：//updates.redhat.com/7.1/en/os/i686/kernel-2.4.20-27.7.i686.rpm
ftp：//updates.redhat.com/7.1/en/os/i686/kernel-smp-2.4.20-27.7.i686.rpm
ftp：//updates.redhat.com/7.1/en/os/i686/kernel-bigmem-2.4.20-27.7.i686.rpm

Red Hat Linux 7.2：

SRPMS：
ftp：//updates.redhat.com/7.2/en/os/SRPMS/kernel-2.4.20-27.7.src.rpm

athlon：
ftp：//updates.redhat.com/7.2/en/os/athlon/kernel-2.4.20-27.7.athlon.rpm
ftp：//updates.redhat.com/7.2/en/os/athlon/kernel-smp-2.4.20-27.7.athlon.rpm

i386：
ftp：//updates.redhat.com/7.2/en/os/i386/kernel-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.2/en/os/i386/kernel-source-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.2/en/os/i386/kernel-doc-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.2/en/os/i386/kernel-BOOT-2.4.20-27.7.i386.rpm

i586：
ftp：//updates.redhat.com/7.2/en/os/i586/kernel-2.4.20-27.7.i586.rpm
ftp：//updates.redhat.com/7.2/en/os/i586/kernel-smp-2.4.20-27.7.i586.rpm

i686：
ftp：//updates.redhat.com/7.2/en/os/i686/kernel-2.4.20-27.7.i686.rpm
ftp：//updates.redhat.com/7.2/en/os/i686/kernel-smp-2.4.20-27.7.i686.rpm
ftp：//updates.redhat.com/7.2/en/os/i686/kernel-bigmem-2.4.20-27.7.i686.rpm

Red Hat Linux 7.3：

SRPMS：
ftp：//updates.redhat.com/7.3/en/os/SRPMS/kernel-2.4.20-27.7.src.rpm

athlon：
ftp：//updates.redhat.com/7.3/en/os/athlon/kernel-2.4.20-27.7.athlon.rpm
ftp：//updates.redhat.com/7.3/en/os/athlon/kernel-smp-2.4.20-27.7.athlon.rpm

i386：
ftp：//updates.redhat.com/7.3/en/os/i386/kernel-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.3/en/os/i386/kernel-source-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.3/en/os/i386/kernel-doc-2.4.20-27.7.i386.rpm
ftp：//updates.redhat.com/7.3/en/os/i386/kernel-BOOT-2.4.20-27.7.i386.rpm

i586：
ftp：//updates.redhat.com/7.3/en/os/i586/kernel-2.4.20-27.7.i586.rpm
ftp：//updates.redhat.com/7.3/en/os/i586/kernel-smp-2.4.20-27.7.i586.rpm

i686：
ftp：//updates.redhat.com/7.3/en/os/i686/kernel-2.4.20-27.7.i686.rpm
ftp：//updates.redhat.com/7.3/en/os/i686/kernel-smp-2.4.20-27.7.i686.rpm
ftp：//updates.redhat.com/7.3/en/os/i686/kernel-bigmem-2.4.20-27.7.i686.rpm

Red Hat Linux 8.0：

SRPMS：
ftp：//updates.redhat.com/8.0/en/os/SRPMS/kernel-2.4.20-27.8.src.rpm

athlon：
ftp：//updates.redhat.com/8.0/en/os/athlon/kernel-2.4.20-27.8.athlon.rpm
ftp：//updates.redhat.com/8.0/en/os/athlon/kernel-smp-2.4.20-27.8.athlon.rpm

i386：
ftp：//updates.redhat.com/8.0/en/os/i386/kernel-2.4.20-27.8.i386.rpm
ftp：//updates.redhat.com/8.0/en/os/i386/kernel-source-2.4.20-27.8.i386.rpm
ftp：//updates.redhat.com/8.0/en/os/i386/kernel-doc-2.4.20-27.8.i386.rpm
ftp：//updates.redhat.com/8.0/en/os/i386/kernel-BOOT-2.4.20-27.8.i386.rpm

i586：
ftp：//updates.redhat.com/8.0/en/os/i586/kernel-2.4.20-27.8.i586.rpm
ftp：//updates.redhat.com/8.0/en/os/i586/kernel-smp-2.4.20-27.8.i586.rpm

i686：
ftp：//updates.redhat.com/8.0/en/os/i686/kernel-2.4.20-27.8.i686.rpm
ftp：//updates.redhat.com/8.0/en/os/i686/kernel-smp-2.4.20-27.8.i686.rpm
ftp：//updates.redhat.com/8.0/en/os/i686/kernel-bigmem-2.4.20-27.8.i686.rpm

Red Hat Linux 9：

SRPMS：
ftp：//updates.redhat.com/9/en/os/SRPMS/kernel-2.4.20-27.9.src.rpm

athlon：
ftp：//updates.redhat.com/9/en/os/athlon/kernel-2.4.20-27.9.athlon.rpm
ftp：//updates.redhat.com/9/en/os/athlon/kernel-smp-2.4.20-27.9.athlon.rpm

i386：
ftp：//updates.redhat.com/9/en/os/i386/kernel-2.4.20-27.9.i386.rpm
ftp：//updates.redhat.com/9/en/os/i386/kernel-source-2.4.20-27.9.i386.rpm
ftp：//updates.redhat.com/9/en/os/i386/kernel-doc-2.4.20-27.9.i386.rpm
ftp：//updates.redhat.com/9/en/os/i386/kernel-BOOT-2.4.20-27.9.i386.rpm

i586：
ftp：//updates.redhat.com/9/en/os/i586/kernel-2.4.20-27.9.i586.rpm
ftp：//updates.redhat.com/9/en/os/i586/kernel-smp-2.4.20-27.9.i586.rpm

i686：
ftp：//updates.redhat.com/9/en/os/i686/kernel-2.4.20-27.9.i686.rpm
ftp：//updates.redhat.com/9/en/os/i686/kernel-smp-2.4.20-27.9.i686.rpm
ftp：//updates.redhat.com/9/en/os/i686/kernel-bigmem-2.4.20-27.9.i686.rpm