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Date: Fri, 28 Oct 2016 14:41:25 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liqiang6-s@....cn>
Subject: CVE request Qemu: 9pfs: integer overflow leading to OOB access
Hello,
Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9
File System(9pfs) support, is vulnerable to an integer overflow issue. It
could occur by accessing xattributes values.
A privileged user inside guest could use this flaw to crash the Qemu process
instance resulting in DoS.
Upstream patch:
---------------
-> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02942.html
Reference:
----------
-> http://wiki.qemu.org/Documentation/9psetup
This issue was reported by Li Qiang of 360.cn Inc.
Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
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