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CVE-2018-19967

Published: 8 December 2018

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.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
hirsute Ignored
(end of life)
groovy Ignored
(end of life)
xenial Needed

impish Ignored
(end of life)
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(4.11.1-1)
jammy Not vulnerable
(4.11.1-1)
kinetic Not vulnerable
(4.11.1-1)
lunar Not vulnerable
(4.11.1-1)
trusty Does not exist
(trusty was needs-triage)
upstream
Released (4.11.1-1)
mantic Not vulnerable
(4.11.1-1)
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H