CVE-2016-2548

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.

Category

6.2
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.11%
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
http://www.ubuntu.com/usn/USN-2930-1 vendor advisory
http://www.ubuntu.com/usn/USN-2967-1 vendor advisory
http://www.securityfocus.com/bid/83383 vdb entry
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
http://www.ubuntu.com/usn/USN-2930-2 vendor advisory
http://www.securitytracker.com/id/1035306 vdb entry
https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d patch vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1311568
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
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://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor advisory
http://www.ubuntu.com/usn/USN-2931-1 vendor advisory
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-2016-2548?
CVE-2016-2548 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2548?
To fix CVE-2016-2548, 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-2016-2548 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2548 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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