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Date: Fri, 24 Apr 2020 16:43:45 +0200
From: Mauro Matteo Cascella <mcascell@...hat.com>
To: oss-security@...ts.openwall.com
Cc: ziming zhang <ezrakiez@...il.com>
Subject: CVE-2020-11869 qemu: integer overflow in ati_2d_blt()
in hw/display/ati-2d.c could lead to DoS
Hello all,
An integer overflow flaw was found in QEMU in the way it implemented the
ATI VGA
emulation. This flaw occurs in the ati_2d_blt() routine while handling MMIO
write
operations through ati_mm_write() callback. A malicious guest could abuse
this
flaw to crash the QEMU process, resulting in a denial of service.
Upstream patch:
->
https://git.qemu.org/?p=qemu.git;a=commit;h=ac2071c3791b67fc7af78b8ceb320c01ca1b5df7
This issue was reported by Ziming Zhang.
CVE-2020-11869 requested via -> https://cveform.mitre.org/
Thank you,
--
Mauro Matteo Cascella
Product Security Engineer
Red Hat <https://www.redhat.com/>
<https://www.redhat.com/>
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