Advisory Published

USN-2752-1: Linux kernel vulnerabilities

First published: Tue Sep 29 2015(Updated: )

Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. (CVE-2015-5697) Marc-André Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). (CVE-2015-6252)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-3.19.0-30-powerpc64-smp<3.19.0-30.33
3.19.0-30.33
=15.04
All of
ubuntu/linux-image-3.19.0-30-generic<3.19.0-30.33
3.19.0-30.33
=15.04
All of
ubuntu/linux-image-3.19.0-30-powerpc64-emb<3.19.0-30.33
3.19.0-30.33
=15.04
All of
ubuntu/linux-image-3.19.0-30-powerpc-smp<3.19.0-30.33
3.19.0-30.33
=15.04
All of
ubuntu/linux-image-3.19.0-30-generic-lpae<3.19.0-30.33
3.19.0-30.33
=15.04
All of
ubuntu/linux-image-3.19.0-30-lowlatency<3.19.0-30.33
3.19.0-30.33
=15.04
All of
ubuntu/linux-image-3.19.0-30-powerpc-e500mc<3.19.0-30.33
3.19.0-30.33
=15.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-2752-1?

    The severity of USN-2752-1 is moderate.

  • How can a local attacker exploit USN-2752-1?

    A local privileged attacker could exploit USN-2752-1 to obtain sensitive information from the kernel.

  • Which version of Ubuntu is affected by USN-2752-1?

    Ubuntu version 15.04 is affected by USN-2752-1.

  • How do I fix USN-2752-1?

    To fix USN-2752-1, update your system to linux-image-3.19.0-30.33 version or higher.

  • Where can I find more information about USN-2752-1?

    You can find more information about USN-2752-1 on the Ubuntu security website.

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