Bug 1446547 (CVE-2017-8379)

Summary:	CVE-2017-8379 Qemu: input: host memory lekage via keyboard events
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, cfergeau, chrisw, cvsbot-xmlrpc, ddepaula, drjones, dwmw2, imammedo, itamar, jen, jjoyce, jschluet, kbasil, knoel, kraxel, lhh, lpeer, markmc, m.a.young, mkenneth, mrezanin, mst, pbonzini, rbryant, rjones, rkrcmar, robinlee.sysu, sclewis, srevivo, tdecacqu, virt-maint, virt-maint, vkuznets, xen-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:11:42 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:	1446560, 1446561, 1476049, 1476068, 1476069, 1476072, 1476074, 1476077
Bug Blocks:	1446090, 1476084

Description Prasad Pandit 2017-04-28 10:36:50 UTC

Quick Emulator(Qemu) built with the keyboard input event handlers support is
vulnerable to a host memory leakage issue. It could occur if a guest user was
to generate large keyboard events, faster than Qemu could process them.

A privileged user inside guest could use this flaw to exhaust host memory,
resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg05599.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/05/03/2

Comment 1 Prasad Pandit 2017-04-28 10:37:32 UTC

Acknowledgments:

Name: Jiang Xin (Huawei PSIRT)

Comment 2 Prasad Pandit 2017-04-28 10:45:40 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1446561]

Comment 3 Prasad Pandit 2017-04-28 10:46:05 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1446560]

Comment 4 Gerd Hoffmann 2017-05-04 05:51:26 UTC

upstream pull request sent.

Comment 5 Fedora Update System 2017-07-25 21:25:43 UTC

qemu-2.7.1-7.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.

Comment 7 errata-xmlrpc 2017-08-02 01:00:55 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 Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
  Red Hat OpenStack Platform 8.0 (Liberty)
  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2017:2408 https://access.redhat.com/errata/RHSA-2017:2408