CVE-2018-19967

Medium

Description

An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Xen

PublishedDec 8, 2018

First seenDec 8, 2018

How to fix

Vendor advisories

debian.org/security/2019/dsa-4369

Affected products

Product	Affected versions	Fixed in
xen xen	v ≤ 4.11.1	—
debian debian_linux	9.0	—

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