CVE-2016-3157 - CVE House
Back to Database
Status published High CVE-2016-3157

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2016-3157

Credits & Attribution

No credits recorded in the NVD database.

References

More from xen

View All →
CVE-2022-23960
Certain Arm Cortex and Neoverse processors through 2022-03-08 do not...
Medium 5.6
CVE-2021-3308
An issue was discovered in Xen 4.12.3 through 4.12.4 and...
Medium 5.5
CVE-2021-27379
An issue was discovered in Xen through 4.11.x, allowing x86...
High 7.8
CVE-2021-26933
An issue was discovered in Xen 4.9 through 4.14.x. On...
Medium 5.5
CVE-2020-29571
An issue was discovered in Xen through 4.14.x. A bounds...
Medium 6.2

Affected Vendor

Affected Software

xen, ubuntu linux
Vulnerable Versions:
4.0.0, 12.04

Timeline

Official Publish: April 12th, 2016
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.