CVE-2016-4569 Information disclosure in n/a
Local attackers can read sensitive kernel stack memory via the ALSA timer interface due to uninitialized data structures.
- 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-2016-4569?
CVE-2016-4569 is a medium-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 snd_timer_user_params function in sound/core/timer.c in the Linux kernel through 4.6 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface.
Weakness: CWE-200
Which versions are affected by CVE-2016-4569?
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-2016-4569?
Apply the vendor's patch.
Is CVE-2016-4569 being exploited?
There is no known exploitation of CVE-2016-4569 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2016-4569, GHSA-8p5x-59f8-f4c8, UBUNTU-CVE-2016-4569.