oss-security - CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <nycvar.YSQ.7.76.2001232321290.91379@xnncv>
Date: Thu, 23 Jan 2020 23:25:06 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Felipe Franciosi <felipe@...anix.com>, 
    Peter Turschmid <peter.turschm@...anix.com>, 
    Raphael Norwitz <raphael.norwitz@...anix.com>
Subject: CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected
 response of iSCSI Server

   Hello,

An out-of-bounds heap buffer access issue was found in the way iSCSI Block 
driver in QEMU handled response coming from an iSCSI server, while checking 
status of a Logical Address Block (LBA) in iscsi_co_block_status() routine.

A remote user could use this flaw to crash the QEMU process resulting in DoS 
OR potentially execute arbitrary code with privileges of the QEMU process on 
the host.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.html

This issue was reported by Felipe Franciosi, Raphael Norwitz and Peter 
Turschmid of nutanix.com.

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D

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.