CVE-2016-2548

MEDIUM

Linux Kernel < 4.4 - Denial of Service via ioctl Call in Timer Subsystem

Title source: llm
STIX 2.1

Description

sound/core/timer.c in the Linux kernel before 4.4.1 retains certain linked lists after a close or stop action, which allows local users to cause a denial of service (system crash) via a crafted ioctl call, related to the (1) snd_timer_close and (2) _snd_timer_stop functions.

References (20)

Core 20
Core References
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2930-1
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2967-1
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/83383
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2930-2
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1035306
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1311568
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3503
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2967-2
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/01/19/1
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2930-3
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2929-1
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2932-1
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2931-1
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2929-2

Scores

CVSS v3 6.2
EPSS 0.0045
EPSS Percentile 36.2%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
linux/linux_kernel < 4.4
Published Apr 27, 2016
Tracked Since Feb 18, 2026