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Date: Tue, 18 Dec 2018 14:20:49 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Li Qiang <>
Subject: CVE-2018-20191 QEMU: pvrdma: uar_read leads to NULL dereference


A Null pointer dereference issue was found in QEMU's implementation of 
VMWare's paravirtual RDMA device. It could occur while performing UAR read 
operation, as it did not define a routine to handle it.

A guest user/process could use this flaw to crash QEMU process on host, 
resulting in DoS.

Upstream patch:

This issue was reported by Li Qiang.

Thank you.
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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