Bug 1731862 (CVE-2019-17351)

Summary: CVE-2019-17351 xen: no grant table and foreign mapping limits leading to crash and DoS
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ailan, drjones, imammedo, jforbes, knoel, m.a.young, mrezanin, pbonzini, rkrcmar, robinlee.sysu, vkuznets, xen-maint
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2019-08-29 11:02:14 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1731864    
Bug Blocks: 1731867    

Description Marian Rehak 2019-07-22 08:46:48 UTC 
If the backend is domain 0, which is the most common configuration, then host-wide operations may be starved, or the host may crash (Host Denial-of-Service).

External References:

https://xenbits.xen.org/xsa/advisory-300.html
Comment 1 Marian Rehak 2019-07-22 08:46:51 UTC 
Acknowledgments:

Name: Julien Grall (ARM)
Comment 2 Marian Rehak 2019-07-22 08:47:12 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1731864]