Bug 1486560 (CVE-2017-13672)

Summary:	CVE-2017-13672 QEMU: vga: OOB read access during display update
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ailan, amit, apevec, areis, ayoung, berrange, bmcclain, cfergeau, chrisw, cvsbot-xmlrpc, dblechte, ddepaula, dmoppert, drjones, dwmw2, eedri, imammedo, itamar, jen, jforbes, jjoyce, jschluet, kbasil, knoel, lhh, lpeer, markmc, m.a.young, mburns, mgoldboi, michal.skrivanek, mkenneth, mrezanin, mst, pbonzini, rbryant, rjones, rkrcmar, robinlee.sysu, sbonazzo, sclewis, sherold, slinaber, srevivo, tdecacqu, virt-maint, virt-maint, vkuznets, xen-maint, ykaul
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	An out-of-bounds read access issue was found in the VGA display emulator built into the Quick emulator (QEMU). It could occur while reading VGA memory to update graphics display. A privileged user/process inside guest could use this flaw to crash the QEMU process on the host resulting in denial of service situation.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:22:33 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1486561, 1486562, 1486640, 1486641, 1486642, 1486643, 1493359, 1493360, 1493361, 1493362, 1493363, 1493364, 1493365
Bug Blocks:	1478328, 1520691

Description Prasad Pandit 2017-08-30 07:21:28 UTC

Quick emulator(Qemu) built with the VGA display emulator support is vulnerable
to an out-of-bounds read access issue. It could occur while reading VGA memory
to update graphics display.

A privileged user/process inside guest could use this flaw to crash the Qemu
process on the host resulting in DoS situation.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg05332.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/08/30/3

Comment 1 Prasad Pandit 2017-08-30 07:22:00 UTC

Acknowledgments:

Name: David Buchanan

Comment 2 Prasad Pandit 2017-08-30 07:23:22 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1486562]

Comment 3 Prasad Pandit 2017-08-30 07:23:46 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1486561]

Comment 9 Fedora Update System 2017-11-07 22:13:42 UTC

qemu-2.9.1-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.

Comment 21 errata-xmlrpc 2018-04-10 08:23:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0816 https://access.redhat.com/errata/RHSA-2018:0816

Comment 22 errata-xmlrpc 2018-04-10 18:55:55 UTC

This issue has been addressed in the following products:

  Red Hat Virtualization 4 for RHEL-7

Via RHSA-2018:1104 https://access.redhat.com/errata/RHSA-2018:1104

Comment 23 errata-xmlrpc 2018-04-11 18:02:54 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)
  Red Hat OpenStack Platform 11.0 (Ocata)
  Red Hat OpenStack Platform 8.0 (Liberty)
  Red Hat OpenStack Platform 9.0 (Mitaka)
  Red Hat OpenStack Platform 12.0 (Pike)

Via RHSA-2018:1113 https://access.redhat.com/errata/RHSA-2018:1113

Comment 24 errata-xmlrpc 2018-07-10 17:52:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2162 https://access.redhat.com/errata/RHSA-2018:2162