[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-Id: <20161015164603.2A9F752E4DF@smtpvbsrv1.mitre.org>
Date: Sat, 15 Oct 2016 12:46:03 -0400 (EDT)
From: cve-assign@...re.org
To: ppandit@...hat.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, psirt@...wei.com
Subject: Re: CVE request Qemu: net: OOB buffer access in rocker switch emulation
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
> Quick Emulator(Qemu) built with the Rocker switch emulation support is
> vulnerable to an OOB read access issue. It could occur while performing a DMA
> access 'TEST_DMA_CTRL_INVERT' test.
>
> A privileged guest user could use this issue to crash the Qemu process
> instance on the host resulting in DoS.
>
> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html
> https://bugzilla.redhat.com/show_bug.cgi?id=1384896
>> While testing host DMA access, a buffer address
>> is written to register 'TEST_DMA_ADDR' and its size is written to
>> register 'TEST_DMA_SIZE'. When performing TEST_DMA_CTRL_INVERT
>> test, if DMA buffer size was greater than 'INT_MAX', it leads to
>> an invalid buffer access. Limit the DMA buffer size to avoid it.
Use CVE-2016-8668.
This is not yet available at
http://git.qemu.org/?p=qemu.git;a=history;f=hw/net/rocker/rocker.c but
that may be an expected place for a later update.
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAEBCAAGBQJYAlsOAAoJEHb/MwWLVhi2+IoP/0i4fPGczDVTahpTjfF2hwho
7LuBxbaC/CN9Jkr9MUTgtda45X4NT3K6XbR6xrZA3Nv8Mtcbo7ZO/c91LmIhib8n
QpV8DixIv+KTXj0NFZ2jWPThjb65wSUDIVHMSt9e8pbk6zmqmUVAy2K85FV+rHXq
fhX89bgXPoT0WqK2ukxhZz/3pBiVoCRPlxQx4TuTYppB7O8K3XOPEktmqOvamtfo
uSZLbPZlPSbmQ5w2GFLSAl22yeiRMznRzXQK5GT33Pu1109gY5kWfP5tLmDn8vS0
bD6m7jXKQqplrS48YbbwGlFGwcn7hXxH81kj2JrQImtK6i7o0o/ONhhlnu5cuq/K
nuboysIih7EGoY3vax0pbyisB5wOmp7pGc9e4b+AQP/kgbE2L+iHOlZigw1cUO2n
uc1vRl5mr4Z60ubIQTBUPceVMa2LHydj5/WjoryidKxqpFGY/Bu4YGkYnApEOhQY
iAR1Q82CMCzUVB6L7GszkS96+7DVfBWblBxVf23cJNwFq/xylUvtkUfj3rEOAsgA
OC1/LoqcCNyPQSek2hIaGZrUYoEKKetDtV1mNLn3JnUpCw0K42F6yEWxAtwXgYRj
ezqVXUq8JDiGXHvnN6k31Yixu8RsKCO1bvmiC10FMJtYZVsOr6rvnIIOGBC2ChfM
wJ+NxzkQZ4MdGyqPJdvA
=+r3h
-----END PGP SIGNATURE-----
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.
