Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The evm_update_evmxattr function in security/integrity/evm/evm_crypto.c in the Linux kernel before 3.7.5, when the Extended Verification Module (EVM) is enabled, allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via an attempted removexattr operation on an inode of a sockfs filesystem.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel ‘evm_update_evmxattr’函数拒绝服务漏洞
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 kernel 3.7.5之前的版本中的security/integrity/evm/evm_crypto.c中的evm_update_evmxattr函数中存在漏洞。在启用扩展的验证模式(EVM)情况下，通过尝试在sockfs文件系统的inode上进行removexattr操作，本地攻击者利用该漏洞导致拒绝服务（空指针引用和系统崩溃）
CVSS Information
N/A
Vulnerability Type
N/A