Bug 1840980 (CVE-2020-13361)

Summary:	CVE-2020-13361 QEMU: es1370: OOB access due to incorrect frame count leads to DoS
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:	amit, berrange, cfergeau, dwmw2, itamar, jen, jferlan, jforbes, jjoyce, jlyle, jmaloy, jschluet, knoel, lhh, lpeer, m.a.young, mburns, mkenneth, mrezanin, mst, pbonzini, ribarry, rjones, robinlee.sysu, sclewis, slinaber, virt-maint, virt-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	QEMU 5.0.1	Doc Type:	If docs needed, set a value
Doc Text:	An out-of bounds access flaw was found in the ES1370 audio device emulator of the QEMU. This flaw occurs in the 'audio_pcm_sw_read', while reading an audio byte stream from a channel if the channel frame count is set to a malicious value. A guest user or process may use this flaw to crash the QEMU process on the host, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-12-15 11:32:36 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:	1840985, 1840986, 1840987, 1910696
Bug Blocks:	1772801

Description Prasad Pandit 2020-05-28 04:09:54 UTC

An OOB access issue was found in the ES1370 audio device emulator of the QEMU. The issue occurs in 'audio_pcm_sw_read', while reading audio byte stream from a channel, if the channel frame count is set to a malicious value. A guest user/process may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg07230.html

Reference:
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  -> https://www.openwall.com/lists/oss-security/2020/05/28/1

Comment 1 Prasad Pandit 2020-05-28 04:10:03 UTC

Acknowledgments:

Name: Ren Ding (SSLab Georgia Tech), Hanqing Zhao (SSLab Georgia Tech)

Comment 2 Prasad Pandit 2020-05-28 04:19:25 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1840985]


Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1840986]