Advisory Published

USN-3017-1: Linux kernel vulnerabilities

First published: Mon Jun 27 2016(Updated: )

Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. (CVE-2016-4997) Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. (CVE-2016-4482) Kangjie Lu discovered an information leak in the timer handling implementation in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. (CVE-2016-4569, CVE-2016-4578) Kangjie Lu discovered an information leak in the X.25 Call Request handling in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. (CVE-2016-4580) It was discovered that an information leak exists in the Rock Ridge implementation in the Linux kernel. A local attacker who is able to mount a malicious iso9660 file system image could exploit this flaw to obtain potentially sensitive information from kernel memory. (CVE-2016-4913) Baozeng Ding discovered that the Transparent Inter-process Communication (TIPC) implementation in the Linux kernel did not verify socket existence before use in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4951) Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling IPT_SO_SET_REPLACE events. A local unprivileged attacker could use this to cause a denial of service (system crash) or obtain potentially sensitive information from kernel memory. (CVE-2016-4998)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.2.0-41-powerpc64-emb<4.2.0-41.48
4.2.0-41.48
=15.10
All of
ubuntu/linux-image-4.2.0-41-lowlatency<4.2.0-41.48
4.2.0-41.48
=15.10
All of
ubuntu/linux-image-4.2.0-41-generic<4.2.0-41.48
4.2.0-41.48
=15.10
All of
ubuntu/linux-image-4.2.0-41-powerpc-smp<4.2.0-41.48
4.2.0-41.48
=15.10
All of
ubuntu/linux-image-4.2.0-41-powerpc-e500mc<4.2.0-41.48
4.2.0-41.48
=15.10
All of
ubuntu/linux-image-4.2.0-41-powerpc64-smp<4.2.0-41.48
4.2.0-41.48
=15.10
All of
ubuntu/linux-image-4.2.0-41-generic-lpae<4.2.0-41.48
4.2.0-41.48
=15.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-3017-1?

    The severity of USN-3017-1 is not specified.

  • How can a local attacker exploit the vulnerability in USN-3017-1?

    A local unprivileged attacker can exploit the vulnerability in USN-3017-1 to cause a denial of service (system crash) or execute arbitrary code.

  • Which versions of Ubuntu are affected by USN-3017-1?

    Ubuntu 15.10 is affected by USN-3017-1.

  • What is the recommended remedy for USN-3017-1?

    The recommended remedy for USN-3017-1 is to update to version 4.2.0-41.48 or later of the Linux kernel.

  • Where can I find more information about USN-3017-1?

    You can find more information about USN-3017-1 on the Ubuntu Security Notices website.

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