PT-2016-5198 · Linux+3 · Linux Kernel+3

Dmitry Vyukov · Published 2016-01-13 · Updated 2017-09-07 · CVE-2016-2546

Positive Technologies (AI Summary)

CVSS v3.1

5.1

Medium

Base vector

AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.4.1

Description The issue is related to the use of an incorrect type of mutex in the sound/core/timer.c file, which can be exploited by local users to cause a denial of service. This can be achieved through a crafted ioctl call, resulting in a race condition, use-after-free, and potentially a system crash.

Recommendations For Linux kernel versions prior to 4.4.1, update to version 4.4.1 or later to resolve the issue.

Fix

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALT-PU-2016-1018

ALT-PU-2016-1485

CVE-2016-2546

DSA-3503-1

OPENSUSE-SU-2016_2144-1

SUSE-SU-2016:0911-1

SUSE-SU-2016:1102-1

SUSE-SU-2016:1203-1

SUSE-SU-2016:2074-1

USN-2929-1

USN-2929-2

USN-2930-1

USN-2930-2

USN-2930-3

USN-2931-1

USN-2932-1

USN-2967-1

USN-2967-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 249

• https://github.com/torvalds/linux/commit/af368027a49a751d6ff4ee9e3f9961f35bb4fede · Patch
• https://ubuntu.com/security/CVE-2015-8767 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2546 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2069 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3503-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2929-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-2930-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-2967-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2930-2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-2546 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2074-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2544 · Vendor Advisory
• http://ubuntu.com/usn/USN-2929-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2967-1 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af368027a49a751d6ff4ee9e3f9961f35bb4fede · Patch