Stack-based Buffer Overflow Vulnerability in NBD Server Implementation in QEMU

CVE-2017-15118 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

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.

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