CVE:CVE-2010-3437
CNNVD:CNNVD-201010-005
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 2.6.36-rc6之前版本中的drivers/block/pktcdvd.c文件中的pkt_find_dev_from_minor函数存在带符号的整数错误漏洞。本地用户可以借助在PKT_CTRL_CMD_STATUS的IO控制调用中特制的索引值从内核内存中获取敏感信息或者导致拒绝服务（非法指针解引用以及系统崩溃）。
solution:Upgrade linux linux_kernel to a higher version than 2.6.36,2.6.36,2.6.36:rc1,2.6.36:rc2,2.6.36:rc3,2.6.36:rc4,2.6.36:rc5,and avoid the version (,2.6.36),2.6.36,2.6.36:rc1,2.6.36:rc2,2.6.36:rc3,2.6.36:rc4,2.6.36:rc5; Upgrade opensuse opensuse to a higher version than 11.2,11.3,and avoid the version 11.2,11.3; Upgrade suse linux_enterprise_desktop to a higher version than 10:sp3,11:sp1,and avoid the version 10:sp3,11:sp1; Upgrade suse linux_enterprise_real_time_extension to a higher version than 11:sp1,and avoid the version 11:sp1; Upgrade suse linux_enterprise_server to a higher version than 9,10:sp3,11:sp1,and avoid the version 9,10:sp3,11:sp1; Upgrade suse linux_enterprise_software_development_kit to a higher version than 10:sp3,and avoid the version 10:sp3; Upgrade debian debian_linux to a higher version than 5.0,and avoid the version 5.0; 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