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.

References

Advisories
More

https://www.debian.org/security/2019/dsa-4369

https://support.citrix.com/article/CTX239432

http://www.securityfocus.com/bid/106182

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html

https://xenbits.xen.org/xsa/advisory-282.html

Details

Source: Mitre, NVD

Published: 2018-12-08

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00076