PT-2016-5389 · Linux+1 · Linux Kernel+1

Andy Lutomirski · Published 2016-04-12 · Updated 2016-12-03 · CVE-2016-3157

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the switch to function in the Linux kernel, which does not properly context-switch IOPL on 64-bit PV Xen guests. This 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2016-3157

DLA-516-1

DSA-3607-1

USN-2965-1

USN-2965-2

USN-2965-3

USN-2965-4

USN-2968-1

USN-2968-2

USN-2969-1

USN-2970-1

USN-2971-1

USN-2971-2

USN-2971-3

USN-2996-1

USN-2997-1

Affected Products

Linux Kernel

Ubuntu

References · 63

• http://ubuntu.com/usn/USN-2968-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3607-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2970-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-3140 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2965-3 · Vendor Advisory
• http://ubuntu.com/usn/USN-2997-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-2968-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2997-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-3156 · Vendor Advisory
• http://ubuntu.com/usn/USN-2996-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2188 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-3157 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-3689 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2968-2 · Vendor Advisory
• http://ubuntu.com/usn/USN-2970-1 · Vendor Advisory