[<prev] [next>] [day] [month] [year] [list]
Message-ID: <nycvar.YSQ.7.78.906.2008241819340.306228@xnncv>
Date: Mon, 24 Aug 2020 18:22:05 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Gerd Hoffmann <kraxel@...hat.com>, yanyu.zhang@...itin.com,
ziming zhang <ezrakiez@...il.com>, Xiao Wei <xiaowei-c@....com>
Subject: CVE-2020-14364 QEMU: usb: out-of-bounds r/w access issue while
processing usb packets
Hello,
An out-of-bounds read/write access issue was found in the USB emulator of the
QEMU. It occurs while processing USB packets from a guest, when
'USBDevice->setup_len' exceeds the USBDevice->data_buf[4096], in
do_token_{in,out} routines.
A guest user may use this flaw to crash the QEMU process resulting in DoS OR
potentially execute arbitrary code with the privileges of the QEMU process on
the host.
* Attached herein is an upstream patch from Gerd Hoffmann(CC'd) to fix this
issue.
* 'CVE-2020-14364' is assigned to this issue by Red Hat Inc.
* This issue was independently reported by Ziming Zhang, Gonglei Arei and
Yanyu Zhang(CC'd).
Gonglei and Yanyu mentioned that the issue was found by Xiao Wei(CC'd).
Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D
View attachment "0001-usb-fix-setup-len-init.patch" of type "text/plain" (3127 bytes)
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
