Bug 1420484 (CVE-2017-2620, xsa209)

Summary:	CVE-2017-2620 Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	apevec, areis, chrisw, cvsbot-xmlrpc, ddepaula, gmollett, jen, jjoyce, jschluet, kbasil, knoel, kraxel, lhh, lpeer, markmc, mkenneth, mrezanin, mst, pbonzini, rbryant, sclewis, security-response-team, srevivo, tdecacqu
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	qemu 2.8	Doc Type:	If docs needed, set a value
Doc Text:	Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:07:23 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:	1420485, 1420486, 1420487, 1420488, 1420489, 1420490, 1420492, 1420493, 1420494, 1420495, 1420496, 1420497, 1420498, 1420499, 1420500, 1420501, 1420502, 1425419, 1425420
Bug Blocks:	1420460

Description Prasad Pandit 2017-02-08 19:55:23 UTC

Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is
vulnerable to an out-of-bounds access issue. It could occur while copying
VGA data in cirrus_bitblt_cputovideo.

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

Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/02/21/1

Comment 7 Prasad Pandit 2017-02-21 12:08:30 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1425420]

Comment 8 Prasad Pandit 2017-02-21 12:08:44 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1425419]

Comment 9 Adam Mariš 2017-02-22 16:03:05 UTC

External References:

https://xenbits.xen.org/xsa/advisory-209.html

Comment 10 errata-xmlrpc 2017-02-27 23:14:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6

Via RHSA-2017:0334 https://rhn.redhat.com/errata/RHSA-2017-0334.html

Comment 11 errata-xmlrpc 2017-02-27 23:16:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7

Via RHSA-2017:0333 https://rhn.redhat.com/errata/RHSA-2017-0333.html

Comment 12 errata-xmlrpc 2017-02-27 23:17:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7

Via RHSA-2017:0332 https://rhn.redhat.com/errata/RHSA-2017-0332.html

Comment 13 errata-xmlrpc 2017-02-27 23:18:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7

Via RHSA-2017:0331 https://rhn.redhat.com/errata/RHSA-2017-0331.html

Comment 14 errata-xmlrpc 2017-02-27 23:20:01 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty)

Via RHSA-2017:0330 https://rhn.redhat.com/errata/RHSA-2017-0330.html

Comment 15 errata-xmlrpc 2017-02-27 23:21:24 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2017:0329 https://rhn.redhat.com/errata/RHSA-2017-0329.html

Comment 16 errata-xmlrpc 2017-02-27 23:22:36 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2017:0328 https://rhn.redhat.com/errata/RHSA-2017-0328.html

Comment 17 errata-xmlrpc 2017-03-01 07:59:29 UTC

This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-6

Via RHSA-2017:0351 https://rhn.redhat.com/errata/RHSA-2017-0351.html

Comment 18 errata-xmlrpc 2017-03-01 08:02:35 UTC

This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-7
  RHEV 4.X RHEV-H and Agents for RHEL-7

Via RHSA-2017:0350 https://rhn.redhat.com/errata/RHSA-2017-0350.html

Comment 19 errata-xmlrpc 2017-03-01 09:40:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0352 https://rhn.redhat.com/errata/RHSA-2017-0352.html

Comment 20 errata-xmlrpc 2017-03-02 17:29:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0396 https://rhn.redhat.com/errata/RHSA-2017-0396.html

Comment 21 errata-xmlrpc 2017-03-07 11:02:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2017:0454 https://rhn.redhat.com/errata/RHSA-2017-0454.html