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Date: Mon, 26 Nov 2018 11:19:29 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Greg Kurz <groug@...d.org>, zhibin hu <noirfate@...il.com>
Subject: CVE-2018-19489 QEMU: 9pfs: crash due to race condition in renaming
 files

   Hello,

A use-after-free flaw was found in the VirtFS, host directory sharing via Plan 
9 File System(9pfs) support in QEMU. It could occur due to a race condition 
while renaming files on a shared host directory.

A user inside guest could use this flaw to crash the QEMU process resulting in 
DoS issue.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg04489.html

This issue was reported by Zhibin Hu.

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

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