CVE-2014-4654
Medium
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 check authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands, which allows local users to remove kernel controls and cause a denial of service (use-after-free and system crash) by leveraging /dev/snd/controlCX access for an ioctl call.
SeverityMedium
CVSS4.6
Exploit probability—
Product
Linux Kernel
PublishedJul 3, 2014
First seenJul 3, 2014
How to fix
Update
- linux linux_kernel3.15.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 3.15.2 | 3.15.2 |
| suse linux_enterprise_server | 10 | — |
| canonical ubuntu_linux | 12.04 | — |
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