Bug 1420092 (CVE-2017-5931)

Summary:	CVE-2017-5931 Qemu: virtio: integer overflow in handling virtio-crypto requests
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ailan, amit, 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 03:07:11 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:
Bug Blocks:	1409775

Description Prasad Pandit 2017-02-07 18:52:55 UTC

Quick Emulator(Qemu) built with the Virtio crypto device emulation support is
vulnerable to an integer overflow issue. It could occur while handling data
encryption/decryption requests in 'virtio_crypto_handle_sym_req'.

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 the Qemu process.

Upstream patch:
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  -> https://lists.nongnu.org/archive/html/qemu-devel/2017-01/msg01368.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/02/07/8

Comment 1 Prasad Pandit 2017-02-07 18:53:30 UTC

Acknowledgments:

Name: Li Qiang (360.cn Inc.)