CVE:CVE-2011-2492
CNNVD:CNNVD-201106-332
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的Bluetooth中存在信息泄露漏洞。该漏洞源于l2cap_sock.c和rfcomm/sock.c中的错误，结构“l2cap_conninfo”和“rfcomm_conninfo”每个都有一个填充字节，此字节在“cinfo”中被复制到未初始化的用户空间。远程攻击者可借助特制的getsockopt系统调用获取内核内存的敏感信息。
solution:Upgrade linux linux_kernel to a higher version than 3.0,3.0,3.0:rc1,3.0:rc2,3.0:rc3,and avoid the version (,3.0),3.0,3.0:rc1,3.0:rc2,3.0:rc3; Upgrade redhat enterprise_linux_aus to a higher version than 5.6,and avoid the version 5.6; Upgrade redhat enterprise_linux_desktop to a higher version than 5.0,and avoid the version 5.0; Upgrade redhat enterprise_linux_eus to a higher version than 5.6,and avoid the version 5.6; Upgrade redhat enterprise_linux_server to a higher version than 5.0,and avoid the version 5.0; Upgrade redhat enterprise_linux_workstation to a higher version than 5.0,and avoid the version 5.0