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List:       oss-security
Subject:    Re: [oss-security] CVE Request: Out-of-bands write issue found in qemu
From:       P J P <ppandit () redhat ! com>
Date:       2016-04-27 6:35:10
Message-ID: alpine.LFD.2.20.1604271151190.13938 () wniryva
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+-- On Wed, 27 Apr 2016, ÀîÇ¿ wrote --+
| The qemu has an out-of-bands bug in uart_write() function.
| 
| In uart_write() function from hw/char/cadence_uart.c, the ¡®offset¡¯ isn¡¯t 
| checked and after it is divided by 4 and used to index the ¡®r¡¯ array, it 
| will cause an out-of-bands memory write. The value can be controlled by 
| guest and can cause the qemu crash or code execution on host.
| 
| The patch is here:
| https://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg02711.html

  Not sure if this should need a CVE, awaiting upstream confirmation on the 
same.

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

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