CVE-2014-4656: Canonical Ubuntu Linux

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

Multiple integer overflows in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allow local users to cause a denial of service by leveraging /dev/snd/controlCX access, related to (1) index values in the snd_ctl_add function and (2) numid values in the snd_ctl_remove_numid_conflict function.

Affected products

• Canonical Ubuntu Linux: version 12.04 only
• Linux Linux Kernel: before 3.15.2 (fixed in 3.15.2)
• Red Hat Enterprise Linux Desktop: version 6.0 only
• Red Hat Enterprise Linux Eus: version 6.6 only
• Red Hat Enterprise Linux Server: version 6.0 only
• Red Hat Enterprise Linux Server Aus: version 6.6 only
• Red Hat Enterprise Linux Server Tus: version 6.6 only
• Red Hat Enterprise Linux Workstation: version 6.0 only
• Suse Linux Enterprise Server: version 10 only

Published 2014-07-03. Last modified 2026-06-17.