Vulnerability 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.
CVSS Score
6.2
MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.4 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2ba1feVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
- http://www.debian.org/security/2016/dsa-3503
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
- http://www.openwall.com/lists/oss-security/2016/01/19/1
- http://www.securityfocus.com/bid/83382
- http://www.ubuntu.com/usn/USN-2929-1
- http://www.ubuntu.com/usn/USN-2929-2
- http://www.ubuntu.com/usn/USN-2930-1
- http://www.ubuntu.com/usn/USN-2930-2
- http://www.ubuntu.com/usn/USN-2930-3
- http://www.ubuntu.com/usn/USN-2931-1
- http://www.ubuntu.com/usn/USN-2932-1
FAQ
What is CVE-2016-2549?
CVE-2016-2549 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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.
How severe is CVE-2016-2549?
CVE-2016-2549 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-2549?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.