What is CVE-2016-2143?

CVE-2016-2143 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2016-2143 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2016-2143?

CVE-2016-2143 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2016-2143?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2016-2143 patch availability.

Is CVE-2016-2143 actively exploited?

CVE-2016-2143 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2016-2143

High

The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.

Package Linux Kernel

Published 2016-04-27

Last modified 2026-05-06

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type

CWE-20

CVE-2016-2143 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

13 total

Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1

Patch Vendor Advisory
GitHub
https://github.com/torvalds/linux/commit/3446c13b268af86391d06611327006b059b8bab1

Patch
Lists
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html

Third Party Advisory
Lists
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html

Third Party Advisory
Lists
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html

Third Party Advisory

Showing 5 of 13 references View all on NVD

Details

CVE ID CVE-2016-2143

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2016-04-27

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2016-2143?

CVE-2016-2143 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2016-2143 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2016-2143?

CVE-2016-2143 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2016-2143?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2016-2143 patch availability.
Is CVE-2016-2143 actively exploited?

No. CVE-2016-2143 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.