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Date: Thu, 4 Jun 2020 11:21:42 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Ren Ding <rding@...ech.edu>, Hanqing Zhao <hanqing@...ech.edu>,
Yi Ren <c4tren@...il.com>
Subject: CVE-2020-13800 QEMU: ati-vga: infinite recursion in ati_mm_read/write
calls may lead to DoS
Hello,
An infinite recursion issue was found in the ati-vga emulator of the QEMU. It
could occur in ati_mm_read/write routines while accessing VGA registers, for
certain values of the 'mm_index' variable. A guest user/process may use this
flaw to crash the QEMU process resulting in DoS scenario.
Upstream patch:
---------------
-> https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00833.html
This issue was reported by Ren Ding and Hanqing Zhao of SSLab Georgia Tech and
Yi Ren(CC'd)
'CVE-2020-13800' requeted via -> https://cveform.mitre.org/
Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D
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