oss-security - CVE-2018-18849 Qemu: lsi53c895a: OOB msg buffer access leads to DoS

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Message-ID: <nycvar.YSQ.7.76.1811011151230.336@xnncv>
Date: Thu, 1 Nov 2018 11:56:28 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: ameya.more@...cle.com
Subject: CVE-2018-18849 Qemu: lsi53c895a: OOB msg buffer access leads to
 DoS

   Hello,

An out of bounds memory access issue was found in the LSI53C895A SCSI Host Bus 
Adapter emulation while writing a message in lsi_do_msgin. It could occur 
during migration if the 'msg_len' field has an invalid value.  A user/process 
could use this flaw to crash the Qemu process resulting in DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg06682.html

This issue was discovered by dejavusecurity.com and reported by Oracle.com.

CVE assigned via -> https://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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