Linux Kernel 远程权限提升漏洞(CVE-2017-2583)
Linux Kernel 远程权限提升漏洞(CVE-2017-2583)
发布日期:2017-07-03
更新日期:2017-07-04
受影响系统:
描述:
BUGTRAQ ID: 95673
CVE(CAN) ID: CVE-2017-2583
Linux Kernel是Linux操作系统的内核。
Linux kernel < 4.9.5版本,arch/x86/kvm/emulate.c/load_segment_descriptor实现中未正确模拟"MOV SS, NULL selector"指令,可使客户端OS用户造成拒绝服务或获取提升的权限。
<*来源:Xiaohan Zhang
*>
建议:
厂商补丁:
Linux
-----
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:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=33ab91103b3415e12457e3104f0e4517ce12d0f3
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5
https://bugzilla.redhat.com/show_bug.cgi?id=1414735
https://github.com/torvalds/linux/commit/33ab91103b3415e12457e3104f0e4517ce12d0f3
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