CVE-2016-9178 Information disclosure in n/a

Medium 5.5 Published Updated

Local attackers can read sensitive kernel stack memory due to uninitialized variables in the Linux kernel's user access macros.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2016-9178?

CVE-2016-9178 is a medium-severity vulnerability in Linux kernel, published on 28 Nov 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-200

Which versions are affected by CVE-2016-9178?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2016-9178?

Apply the vendor's patch.

Is CVE-2016-9178 being exploited?

There is no known exploitation of CVE-2016-9178 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-9178, GHSA-x43g-x8g8-q2qc, UBUNTU-CVE-2016-9178.

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