CVE-2017-15594

HIGH

Xen < 4.9.0 - Denial of Service via IDT Mishandling During CPU Hotplugging

Title source: llm
STIX 2.1

Description

An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.

References (6)

Core 6
Core References
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html
Mitigation, Patch, Vendor Advisory x_refsource_confirm
https://xenbits.xen.org/xsa/advisory-244.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-4050
Vendor Advisory x_refsource_confirm
https://support.citrix.com/article/CTX228867
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201801-14
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039568

Scores

CVSS v3 8.8
EPSS 0.0007
EPSS Percentile 21.9%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

Status published
Products (1)
xen/xen < 4.9.0
Published Oct 18, 2017
Tracked Since Feb 18, 2026