Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 缓冲区错误漏洞
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。 Linux kernel 4.18.1及之前版本中的drivers/net/xen-netback/hash.c文件的‘xenvif_set_hash_mapping’函数存在安全漏洞，该漏洞源于程序没有进行输入验证或输入验证出错。攻击者可利用该漏洞造成后端越界访问内存，可能提升权限，造成拒绝服务或泄露信息。
CVSS Information
N/A
Vulnerability Type
N/A