CVEvulnerability

CVE-2016-3157

7.8 HIGH Published 2016-04-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2016-04-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.8 HIGH — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-264

Description

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.

Affected configurations

• xen xen 4.0.0 • canonical ubuntu linux 12.04

Related

Weakness · not in database (1)

References