Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.
CVSS Information
N/A
Vulnerability Type
栈缓冲区溢出
Vulnerability Title
QEMU 缓冲区错误漏洞
Vulnerability Description
QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 2.11之前版本中NBD服务器的实现存在基于栈的缓冲区溢出漏洞，该漏洞源于程序没有正确的对用户提交的数据执行边界检测，导致复制数据的大小超过了分配的缓冲区内存空间。远程攻击者可利用该漏洞造成拒绝服务（QEMU实例崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A