CWE
476
Advisory Published

USN-3406-2: Linux kernel (Trusty HWE) vulnerabilities

First published: Tue Aug 29 2017(Updated: )

USN-3406-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. It was discovered that an out of bounds read vulnerability existed in the associative array implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2016-7914) It was discovered that a NULL pointer dereference existed in the Direct Rendering Manager (DRM) driver for VMWare devices in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-7261) It was discovered that the USB Cypress HID drivers for the Linux kernel did not properly validate reported information from the device. An attacker with physical access could use this to expose sensitive information (kernel memory). (CVE-2017-7273) A reference count bug was discovered in the Linux kernel ipx protocol stack. A local attacker could exploit this flaw to cause a denial of service or possibly other unspecified problems. (CVE-2017-7487) Huang Weller discovered that the ext4 filesystem implementation in the Linux kernel mishandled a needs-flushing-before-commit list. A local attacker could use this to expose sensitive information. (CVE-2017-7495) It was discovered that an information leak existed in the set_mempolicy and mbind compat syscalls in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-7616)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-3.13.0-129-generic<3.13.0-129.178~precise1
3.13.0-129.178~precise1
Ubuntu gir1.2-packagekitglib-1.0=12.04
All of
ubuntu/linux-image-generic-lpae-lts-trusty<3.13.0.129.119
3.13.0.129.119
Ubuntu gir1.2-packagekitglib-1.0=12.04
All of
ubuntu/linux-image-generic-lts-trusty<3.13.0.129.119
3.13.0.129.119
Ubuntu gir1.2-packagekitglib-1.0=12.04
All of
ubuntu/linux-image-3.13.0-129-generic-lpae<3.13.0-129.178~precise1
3.13.0-129.178~precise1
Ubuntu gir1.2-packagekitglib-1.0=12.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-3406-2?

    USN-3406-2 has a severity rating of high.

  • How do I fix USN-3406-2?

    To fix USN-3406-2, you need to update your Linux kernel to version 3.13.0-129.178~precise1 or higher.

  • Which versions of Ubuntu are affected by USN-3406-2?

    USN-3406-2 affects Ubuntu 12.04 with Linux kernel versions 3.13.0-129.178~precise1, 3.13.0.129.119, and 3.13.0-129.178~precise1.

  • What vulnerabilities are fixed by USN-3406-2?

    USN-3406-2 fixes the following vulnerabilities: CVE-2016-7914, CVE-2017-7261, and CVE-2017-7273.

  • Where can I find more information about USN-3406-2?

    For more information about USN-3406-2, you can visit the Ubuntu security advisory at https://ubuntu.com/security/CVE-2016-7914, https://ubuntu.com/security/CVE-2017-7261, and https://ubuntu.com/security/CVE-2017-7273.

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