Detections
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CVE-2014-4655
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 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.
References
https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563
https://bugzilla.redhat.com/show_bug.cgi?id=1113445
http://www.ubuntu.com/usn/USN-2335-1
http://www.ubuntu.com/usn/USN-2334-1
http://www.securitytracker.com/id/1036763
http://www.securityfocus.com/bid/68162
http://www.openwall.com/lists/oss-security/2014/06/26/6
http://secunia.com/advisories/60564
http://secunia.com/advisories/60545
http://secunia.com/advisories/59777
http://secunia.com/advisories/59434
http://rhn.redhat.com/errata/RHSA-2014-1083.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html