Bug 1414108 (CVE-2017-5525)

Summary:	CVE-2017-5525 Qemu: audio: memory leakage in ac97 device
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ailan, amit.shah, apevec, areis, ayoung, berrange, cfergeau, chrisw, cvsbot-xmlrpc, drjones, dwmw2, imammedo, itamar, jen, jjoyce, jschluet, kbasil, knoel, lhh, lpeer, markmc, m.a.young, mkenneth, mrezanin, mst, pbonzini, rbryant, rjones, rkrcmar, 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 03:05:37 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:	1414110, 1414111
Bug Blocks:	1382469

Description Prasad Pandit 2017-01-17 19:10:43 UTC

Quick Emulator(Qemu) built with the ac97 audio device emulation support is
vulnerable to a memory leakage issue. It could occur while doing a device
unplug operation; Doing so repeatedly would result in leaking host memory,
affecting other services on the host.

A privileged user inside guest could use this flaw to cause a DoS and/or
potentially crash the Qemu process on the host.

Upstream patch:
---------------
  -> https://lists.nongnu.org/archive/html/qemu-devel/2017-01/msg01740.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/01/17/19

Comment 1 Prasad Pandit 2017-01-17 19:10:48 UTC

Acknowledgments:

Name: Li Qiang (360.cn Inc.)

Comment 2 Prasad Pandit 2017-01-17 19:12:48 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1414111]

Comment 3 Prasad Pandit 2017-01-17 19:13:09 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1414110]