影响版本:
Linux kernel 2.6.31 .2 Linux kernel 2.6.31 -rc7 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 -rc6 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 -rc3 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 -rc1 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 Linux kernel 2.6.30 rc6 Linux kernel 2.6.30 1 Linux kernel 2.6.30 -rc5 Linux kernel 2.6.30 -rc3 Linux kernel 2.6.30 -rc2 Linux kernel 2.6.30 -rc1 Linux kernel 2.6.30 Linux kernel 2.6.29 4 Linux kernel 2.6.29 1 Linux kernel 2.6.29 -git8 Linux kernel 2.6.29 -git14 Linux kernel 2.6.29 -git1 Linux kernel 2.6.29 Linux kernel 2.6.28 9 Linux kernel 2.6.28 8 Linux kernel 2.6.28 6 Linux kernel 2.6.28 5 Linux kernel 2.6.28 3 Linux kernel 2.6.28 2 Linux kernel 2.6.28 1 Linux kernel 2.6.28 -rc7 Linux kernel 2.6.28 -rc5 Linux kernel 2.6.28 -rc1 Linux kernel 2.6.28 -git7 Linux kernel 2.6.28 Linux kernel 2.6.27 6 Linux kernel 2.6.27 3 Linux kernel 2.6.27 24 Linux kernel 2.6.27 14 Linux kernel 2.6.27 13 Linux kernel 2.6.27 12 Linux kernel 2.6.27 12 Linux kernel 2.6.27 .8 Linux kernel 2.6.27 .5 Linux kernel 2.6.27 .5 Linux kernel 2.6.27 -rc8-git5 Linux kernel 2.6.27 -rc8 Linux kernel 2.6.27 -rc6-git6 Linux kernel 2.6.27 -rc6 Linux kernel 2.6.27 -rc5 Linux kernel 2.6.27 -rc2 Linux kernel 2.6.27 -rc1 Linux kernel 2.6.27 Linux kernel 2.6.26 7 Linux kernel 2.6.26 4 Linux kernel 2.6.26 3 Linux kernel 2.6.26 .6 Linux kernel 2.6.26 -rc6 Linux kernel 2.6.3 Linux kernel 2.6.32-rc5 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.32-rc4 Linux kernel 2.6.32-rc3 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.32-rc2 Linux kernel 2.6.32-rc1 Linux kernel 2.6.31.4 Linux kernel 2.6.31.2 Linux kernel 2.6.31-rc9 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31-rc8 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31-rc7 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31-rc5-git3 Linux kernel 2.6.31-rc2 Linux kernel 2.6.30.5 Linux kernel 2.6.30.4 Linux kernel 2.6.30.3 Linux kernel 2.6.29-rc2-git1 Linux kernel 2.6.29-rc2 Linux kernel 2.6.29-rc1 Linux kernel 2.6.28.4 Linux kernel 2.6.26.1 Linux kernel 2.6.26-rc5-git1 Linux kernel 2.6.25-rc1
漏洞描述:
Bugraq ID: 37035 Linux是一款开放源代码的操作系统。 Linux内核KVM中存在一个内存破坏问题,本地攻击者可以利用漏洞以超级用户特权执行任意指令。 系统只对32 MCE banks(KVM_MAX_MCE_BANKS)分配了相应的内存,但是存在漏洞允许用户空间在setup(mcg_cap & 0xff)上填充255,可破坏内核内存。
<*参考
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a9e38c3e01ad242fe2a625354cf065c34b01e3aa
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc7
*>
安全建议:
用户可联系供应商升级到Linux kernel 2.6.32-rc7内核版本: http://www.kernel.org/
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