oss-security - CVE-2019-12247 QEMU: qemu-guest-agent: integer overflow while running guest-exec command

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Message-ID: <nycvar.YSQ.7.76.1905221648340.6754@xnncv>
Date: Wed, 22 May 2019 16:50:25 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
Subject: CVE-2019-12247 QEMU: qemu-guest-agent: integer overflow while running
 guest-exec command

   Hello,

An integer overflow issue was found in the QEMU Guest Agent in QEMU, while 
reading argument list passed to the 'guest-exec' qmp command. An attacker 
could exploit this by sending a crafted QMP command to the agent via a 
listening socket to trigger the overflow. It may crash the QEMU guest agent, 
resulting in DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2019-05/msg04596.html

This issue was reported by Guoxiang Niu of huawei.com.

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

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