CVE-2016-2545

Description

The snd_timer_interrupt function in sound/core/timer.c in the Linux kernel before 4.4.1 does not properly maintain a certain linked list, which allows local users to cause a denial of service (race condition 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 Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/torvalds/linux/commit/ee8413b01045c74340aa13ad5bdf905de32be736 patch vendor advisory
http://www.ubuntu.com/usn/USN-2930-1 vendor advisory
http://www.ubuntu.com/usn/USN-2967-1 vendor advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee8413b01045c74340aa13ad5bdf905de32be736 patch vendor advisory
http://www.ubuntu.com/usn/USN-2930-2 vendor advisory
http://www.debian.org/security/2016/dsa-3503 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1311560
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
http://www.securitytracker.com/id/1035296 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor advisory
http://www.ubuntu.com/usn/USN-2931-1 vendor advisory
http://www.securityfocus.com/bid/83381 vdb entry
http://www.ubuntu.com/usn/USN-2929-2 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-2545?
CVE-2016-2545 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2545?
To fix CVE-2016-2545, 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-2016-2545 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2545 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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