Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Integer signedness error in the DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later allows local users to read kernel memory or cause a denial of service (oops) via a negative optlen value.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel DCCP多个本地信息泄露漏洞
Vulnerability Description
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内核中net/dccp/proto.c文件的do_dccp_getsockopt()函数存在信息泄露漏洞，本地攻击者可能利用此漏洞获取敏感信息。BUG_ON()中无效的opcode内核会崩溃。在其他架构上(如x86-64)内核空间的数据会被拷贝到用户所提供的缓冲区，直到内核的尽头，导致泄漏敏感信息。
CVSS Information
N/A
Vulnerability Type
N/A