Canonical Adds Spectre V4, SpectreRSB Fixes to New Ubuntu 18.04 LTS Azure Kernel

After releasing new kernel security updates for the Ubuntu 16.04 LTS (Xenial Xerus) and Ubuntu 14.04 LTS (Trusty Tahr) operating system series, Canonical published corresponding updates for the Linux kernel for Microsoft Azure cloud systems.

The new Azure kernel is available for Ubuntu 18.04 LTS (Bionic Beaver) and Ubuntu 16.04 LTS (Xenial Xerus) operating system series and addresses the side-channel attack discovered by Jann Horn and Ken Johnson, known as Spectre Variant 4 (CVE-2018-3639), which could allow a local attacker to expose sensitive information.

Also discovered by Jann Horn, the new Azure kernel fixes the … (read more)

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