CVE-2016-2549

Description

sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service (deadlock) via a crafted ioctl call.

Category

6.2
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
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/83382 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
http://www.ubuntu.com/usn/USN-2930-2 vendor advisory
https://github.com/torvalds/linux/commit/2ba1fe7a06d3624f9a7586d672b55f08f7c670f3
http://www.debian.org/security/2016/dsa-3503 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1311570
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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2ba1fe7a06d3624f9a7586d672b55f08f7c670f3 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-2016-2549?
CVE-2016-2549 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2549?
To fix CVE-2016-2549, 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-2016-2549 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2549 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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