CVE-2017-12136

Published: 24 August 2017

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

Notes

Author	Note
sbeattie	xen 4.6 and later are vulnerable

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
xen Launchpad, Ubuntu, Debian	trusty	Does not exist (trusty was not-affected)
	upstream	Needs triage
	xenial	Released (4.6.5-0ubuntu1.4)
	zesty	Released (4.8.0-1ubuntu2.4)
	Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

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