oss-sec mailing list archives

Re: CVE Request: Out-of-bands write issue found in qemu

From: P J P <ppandit () redhat com>
Date: Wed, 27 Apr 2016 11:53:10 +0530 (IST)

+-- On Wed, 27 Apr 2016, 李强 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

Current thread:

CVE Request: Out-of-bands write issue found in qemu 李强 (Apr 26)
- Re: CVE Request: Out-of-bands write issue found in qemu P J P (Apr 26)
  - Re: CVE Request: Out-of-bands write issue found in qemu P J P (May 02)