CVE-2014-4655 Integer overflow in n/a
Local attackers can cause a denial of service in the Linux kernel ALSA subsystem via integer overflow in control element addition.
- 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-2014-4655?
CVE-2014-4655 is a medium-severity 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
The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not properly maintain the user_ctl_count value, which allows local users to cause a denial of service (integer overflow and limit bypass) by leveraging /dev/snd/controlCX access for a large number of SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.
Weakness: CWE-190
Which versions are affected by CVE-2014-4655?
It affects 3 products.
Products include Canonical Ubuntu Linux, Linux kernel, Suse Linux Enterprise Server.
How do I fix CVE-2014-4655?
Upgrade to a fixed version.
Is CVE-2014-4655 being exploited?
There is no known exploitation of CVE-2014-4655 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2014-4655, GHSA-2vv7-7crh-jr74, UBUNTU-CVE-2014-4655.