Canonical Releases Security Updates for Ubuntu 14.04 LTS and 16.10 Linux Kernel

Elvis Bucatariu

2 minutes

Linux security

Canonical recently announced the availability of a patch for the Linux Kernel that targets all versions of Ubuntu. The new update fixes a serious security problem that was discovered recently in the Linux kernel.

The newly discovered security problem affects Ubuntu 14.04 LTS (Trusty Tahr) and Ubuntu 16.10 (Yakkety Yak) operating systems, but also to all derived distributions, including Xubuntu, Lubuntu, Kubuntu, Ubuntu MATE, Ubuntu GNOME, Ubuntu Kylin, Ubuntu Budgie, Ubuntu Studio, and Ubuntu Server.

This vulnerability appears to have been discovered by a computer scientist named Alexander Popov in the SCTP implementation (Stream Control Transmission Protocol) of the Linux Kernel, which allowed a local attacker to crash a system using a denial of service attack or DoS.

Alexander Popov discovered a flaw in the Stream Control Transmission Protocol (SCTP) implementation of the Linux Kernel. A local attacker could exploit this vulnerability to cause a denial of service (system crash) ”, they point out in the security notes of the new patch.

HWE kernels for Trusty, Xenial and Yakkety are also available

Unsurprisingly, Canonical also released HWE (Hardware Enablement) kernels for Ubuntu 12.04.5 LTS, Ubuntu 14.04.5 LTS, and Ubuntu 16.04.2 LTS, encouraging all users of these Ubuntu versions to install them on their systems as soon as possible. possible.

The new kernel versions are linux-image 3.13.0.117.127 for Ubuntu 14.04 LTS, linux-image 4.8.0.49.61 for Ubuntu 16.10, linux-image-lts-trusty 3.13.0.117.108 for Ubuntu 12.04.5 LTS, linux-image-lts-xenial 4.4.0.75.62 for Ubuntu 14.04.5 LTS and linux-image-hwe-16.04 4.8.0.49.21 for Ubuntu 16.04.2 LTS.

To update your Ubuntu operating system, you just have to enter the command «sudo apt-get update && sudo apt-get dist-upgrade»In a new Terminal window, or start the tool Software updater and install all available updates. In the end, make sure to restart your computer after installing the new kernel version. You can find more information about Linux updates in the Canonical Wiki.


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  1.   Daniel said
    ago 7 years

    With that update now it asks me to almost all authenticate myself, when I connect any USB device, even to other partitions of the hard disk that are not the main one and the printer and scanner also stopped recognizing me, I can downgrade that update and how ?

    Reply to Daniel