CVE-2014-4653 Use after free in n/a
Local attackers can trigger a use-after-free in the Linux kernel ALSA control implementation to cause denial of service or leak kernel memory.
- 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-2014-4653?
CVE-2014-4653 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 3 Jul 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not ensure possession of a read/write lock, which allows local users to cause a denial of service (use-after-free) and obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.
Weakness: CWE-416
Which versions are affected by CVE-2014-4653?
It affects 3 products.
Products include Canonical Ubuntu Linux, Linux kernel, Suse Linux Enterprise Server.
How do I fix CVE-2014-4653?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2014-4653 being exploited?
There is no known exploitation of CVE-2014-4653 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2014-4653, GHSA-cjv8-vgc3-fxvc, UBUNTU-CVE-2014-4653.