CWE
416 362
Advisory Published

USN-3508-1: Linux kernel vulnerabilities

First published: Thu Dec 07 2017(Updated: )

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 SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.10.0-42-generic-lpae<4.10.0-42.46
4.10.0-42.46
=17.04
All of
ubuntu/linux-image-generic-lpae<4.10.0.42.42
4.10.0.42.42
=17.04
All of
ubuntu/linux-image-4.10.0-42-generic<4.10.0-42.46
4.10.0-42.46
=17.04
All of
ubuntu/linux-image-4.10.0-1023-raspi2<4.10.0-1023.26
4.10.0-1023.26
=17.04
All of
ubuntu/linux-image-generic<4.10.0.42.42
4.10.0.42.42
=17.04
All of
ubuntu/linux-image-4.10.0-42-lowlatency<4.10.0-42.46
4.10.0-42.46
=17.04
All of
ubuntu/linux-image-lowlatency<4.10.0.42.42
4.10.0.42.42
=17.04
All of
ubuntu/linux-image-raspi2<4.10.0.1023.24
4.10.0.1023.24
=17.04

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Reference Links

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.

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