What is CVE-2016-9191?

CVE-2016-9191 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2016-9191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2016-9191?

CVE-2016-9191 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2016-9191?

No patch is currently available for CVE-2016-9191. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2016-9191 actively exploited?

CVE-2016-9191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2016-9191

Medium

The cgroup offline implementation in the Linux kernel through 4.8.11 mishandles certain drain operations, which allows local users to cause a denial of service (system hang) by leveraging access to a container environment for executing a crafted application, as demonstrated by trinity.

Package Linux Kernel

Published 2016-11-28

Last modified 2026-05-06

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-20

CVE-2016-9191 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

The following references provide additional information about CVE-2016-9191 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
http://www.debian.org/security/2017/dsa-3791
Openwall
http://www.openwall.com/lists/oss-security/2016/11/05/4

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/94129

Third Party Advisory VDB Entry
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1392439

Issue Tracking
Support
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03802en_us
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93362fa47fe98b62e4a34ab408c4a418432e7939
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/93362fa47fe98b62e4a34ab408c4a418432e7939
Patch

Details

CVE ID CVE-2016-9191

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2016-11-28

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2016-9191?

CVE-2016-9191 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2016-9191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2016-9191?

CVE-2016-9191 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2016-9191?

No patch is currently available for CVE-2016-9191. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2016-9191 actively exploited?

No — CVE-2016-9191 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Input Validation (CWE-20)?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →