CVE-2017-8903

HIGH

Xen through 4.8.x - Arbitrary Code Execution via IRET Hypercall

Title source: manual
STIX 2.1

Description

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

References (5)

Core 5
Core References
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201705-11
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038386
Mitigation, Patch, Vendor Advisory x_refsource_confirm
https://xenbits.xen.org/xsa/advisory-213.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98426

Scores

CVSS v3 8.8
EPSS 0.0037
EPSS Percentile 58.6%
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 (2)
xen/xen 4.8.0
xen/xen 4.8.1
Published May 11, 2017
Tracked Since Feb 18, 2026