CVE-2016-9178

Name: CVE-2016-9178
Creator: NVD / NIST
Published: 2016-11-28T03:59:13.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.42%

Last modified Jun 17, 2026

CVE-2016-9178 is a vulnerability of currently unknown severity. The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variable, which allows local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variable, which allows local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call.

Metrics

EPSS Probability

0.42%

33.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 4.7.4

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35afIssue Tracking, Patch, Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5Release Notes
http://www.openwall.com/lists/oss-security/2016/11/04/4Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94144
https://bugzilla.redhat.com/show_bug.cgi?id=1391908Issue Tracking
https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35afIssue Tracking, Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35afIssue Tracking, Patch, Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5Release Notes
http://www.openwall.com/lists/oss-security/2016/11/04/4Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94144
https://bugzilla.redhat.com/show_bug.cgi?id=1391908Issue Tracking
https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35afIssue Tracking, Patch, Third Party Advisory

Timeline

Published: Nov 28, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9178?

How severe is CVE-2016-9178?

Severity scoring for CVE-2016-9178 is pending analysis. The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9178?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9178?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST