Bug 1660753 (CVE-2018-20216)

Summary:	CVE-2018-20216 QEMU: pvrdma: infinite loop in pvrdma_qp_send/recv
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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:	2018-12-20 05:06:42 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:	1661083
Bug Blocks:	1649132

Description Prasad Pandit 2018-12-19 07:13:47 UTC

An infinite loop issue was found in QEMU's implementation of
VMWare's paravirtual RDMA device. It could occur while transferring
QP ring objects' data in pvrdma_qp_send/recv functions.

A guest user/process could use this flaw to cause infinite loop resulting in DoS.

Upstream patch:
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  -> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03052.html

Reference:
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  -> https://www.openwall.com/lists/oss-security/2018/12/19/2

Comment 1 Prasad Pandit 2018-12-20 05:04:58 UTC

Acknowledgments:

Name: Li Qiang

Comment 2 Prasad Pandit 2018-12-20 05:05:20 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1661083]