CVE-2016-2546

Description

sound/core/timer.c in the Linux kernel before 4.4.1 uses an incorrect type of mutex, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.

Category

5.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2930-1 vendor advisory
http://www.securityfocus.com/bid/83384 vdb entry
http://www.ubuntu.com/usn/USN-2967-1 vendor advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 patch vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af368027a49a751d6ff4ee9e3f9961f35bb4fede patch
http://www.ubuntu.com/usn/USN-2930-2 vendor advisory
http://www.debian.org/security/2016/dsa-3503 vendor advisory
http://www.ubuntu.com/usn/USN-2967-2 vendor advisory
http://www.openwall.com/lists/oss-security/2016/01/19/1 mailing list patch
http://www.ubuntu.com/usn/USN-2930-3 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html vendor advisory
http://www.ubuntu.com/usn/USN-2929-1 vendor advisory
http://www.ubuntu.com/usn/USN-2932-1 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1311564
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor advisory
https://github.com/torvalds/linux/commit/af368027a49a751d6ff4ee9e3f9961f35bb4fede patch
http://www.ubuntu.com/usn/USN-2931-1 vendor advisory
http://www.ubuntu.com/usn/USN-2929-2 vendor advisory
http://www.securitytracker.com/id/1035301 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-2546?
CVE-2016-2546 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2546?
To fix CVE-2016-2546, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2546 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2546 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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