USN-3508-1: Linux kernel vulnerabilities
Mohamed Ghannam discovered that a use-after-free vulnerability existed in the Netlink subsystem (XFRM) in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16939) It was discovered that the Linux kernel did not properly handle copy-on- write of transparent huge pages. A local attacker could use this to cause a denial of service (application crashes) or possibly gain administrative privileges. (CVE-2017-1000405) Yonggang Guo discovered that a race condition existed in the driver subsystem in the Linux kernel. A local attacker could use this to possibly gain administrative privileges. (CVE-2017-12146)
Affected Software
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID for this USN?
The vulnerability ID for this USN is CVE-2017-16939.
What is the severity of CVE-2017-16939?
The severity of CVE-2017-16939 is high.
How can a local attacker exploit CVE-2017-16939?
A local attacker could exploit CVE-2017-16939 by causing a denial of service (system crash) or possibly executing arbitrary code.
Which versions of Ubuntu are affected by CVE-2017-16939?
CVE-2017-16939 affects Ubuntu 17.04.
How can I fix the CVE-2017-16939 vulnerability?
To fix the CVE-2017-16939 vulnerability, you should update your system to the fixed version of the Linux kernel, which is 4.10.0-42.46.