CVE-2018-15469

Medium

Description

An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).

SeverityMedium

CVSS6.5

Exploit probability—

Product

Xen

PublishedAug 17, 2018

First seenAug 17, 2018

How to fix

Vendor advisories

security.gentoo.org/glsa/201810-06

Affected products

Product	Affected versions	Fixed in
xen xen	v ≤ 4.11.0	—
debian debian_linux	8.0	—

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