Tracker / CVE-2014-4654
CVE-2014-4654
Medium 4.6
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.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| linux | linux_kernel · … → 3.15.2 |
| suse | linux_enterprise_server |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.