CVE:CVE-2010-2066
CNNVD:CNNVD-201009-044
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。
Linux kernel 2.6.35之前版本中的fs/ext4/move_extent.c文件中的mext_check_arguments函数存在权限许可和访问控制漏洞。本地用户可以借助MOVE_EXT的系统调用来指定append-only文件为donor进而覆盖这个文件。
solution:Upgrade linux linux_kernel to a higher version than 2.6.35,and avoid the version (,2.6.35); Upgrade vmware esx to a higher version than 4.0,4.1,and avoid the version 4.0,4.1; Upgrade canonical ubuntu_linux to a higher version than 6.06,8.04,9.04,9.10,10.04,10.10,and avoid the version 6.06,8.04,9.04,9.10,10.04,10.10; Upgrade suse linux_enterprise_high_availability_extension to a higher version than 11:sp1,and avoid the version 11:sp1; Upgrade suse suse_linux_enterprise_desktop to a higher version than 11:sp1,and avoid the version 11:sp1; Upgrade suse suse_linux_enterprise_server to a higher version than 11:sp1,and avoid the version 11:sp1