CVE-2016-4486 Information disclosure in n/a

Low 3.3 Published Updated

Local attackers can read sensitive kernel stack memory via Netlink messages due to uninitialized data structures in the Linux kernel.

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-2016-4486?

CVE-2016-4486 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 23 May 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The rtnl_fill_link_ifmap function in net/core/rtnetlink.c in the Linux kernel before 4.5.5 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.

Weakness: CWE-200

Which versions are affected by CVE-2016-4486?

It affects 10 products.

Products include Canonical Ubuntu Linux, Linux kernel, Novell Suse Linux Enterprise Debuginfo, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Live Patching, Novell Suse Linux Enterprise Module for Public Cloud and 4 more.

How do I fix CVE-2016-4486?

Upgrade to a fixed version.

Is CVE-2016-4486 being exploited?

There is no known exploitation of CVE-2016-4486 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-4486, GHSA-w757-gq6j-hrx5, UBUNTU-CVE-2016-4486.

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