Advisory Published

USN-3147-1: Linux kernel vulnerabilities

First published: Wed Nov 30 2016(Updated: )

Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. (CVE-2016-7097) Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges. (CVE-2016-7425)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-powerpc-smp<4.8.0.28.37
4.8.0.28.37
=16.10
All of
ubuntu/linux-image-powerpc-e500mc<4.8.0.28.37
4.8.0.28.37
=16.10
All of
ubuntu/linux-image-generic<4.8.0.28.37
4.8.0.28.37
=16.10
All of
ubuntu/linux-image-4.8.0-28-lowlatency<4.8.0-28.30
4.8.0-28.30
=16.10
All of
ubuntu/linux-image-lowlatency<4.8.0.28.37
4.8.0.28.37
=16.10
All of
ubuntu/linux-image-4.8.0-28-generic<4.8.0-28.30
4.8.0-28.30
=16.10
All of
ubuntu/linux-image-4.8.0-28-powerpc-e500mc<4.8.0-28.30
4.8.0-28.30
=16.10
All of
ubuntu/linux-image-4.8.0-28-powerpc64-emb<4.8.0-28.30
4.8.0-28.30
=16.10
All of
ubuntu/linux-image-generic-lpae<4.8.0.28.37
4.8.0.28.37
=16.10
All of
ubuntu/linux-image-4.8.0-28-powerpc-smp<4.8.0-28.30
4.8.0-28.30
=16.10
All of
ubuntu/linux-image-powerpc64-emb<4.8.0.28.37
4.8.0.28.37
=16.10
All of
ubuntu/linux-image-4.8.0-28-generic-lpae<4.8.0-28.30
4.8.0-28.30
=16.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this advisory?

    The vulnerability ID for this advisory is CVE-2016-7097.

  • How can a local attacker exploit this vulnerability?

    A local attacker can exploit this vulnerability by using it to possibly elevate group privileges.

  • Which Linux kernel versions are affected by this vulnerability?

    This vulnerability affects Linux kernel versions 4.8.0-28.30 and 4.8.0.28.37.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is not specified in the advisory.

  • How do I fix this vulnerability?

    To fix this vulnerability, update to Linux kernel version 4.8.0-28.30 or 4.8.0.28.37.

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