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Date: Mon, 30 May 2016 23:13:15 +0530 (IST)
From: P J P <>
To: oss security list <>
Subject: CVE Request Qemu: block: iscsi: buffer overflow in iscsi_aio_ioctl


Quick Emulator(Qemu) built with the Block driver for iSCSI images(virtio-blk) 
support is vulnerable to a heap buffer overflow flaw. It could occur while 
processing iSCSI asynchronous I/O ioctl(2) calls.

A user inside guest could use this flaw to crash the Qemu process resulting in 
DoS OR potentially leverage it to execute arbitrary code with privileges of 
the Qemu process on the host.

Upstream patch:


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

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