Ubuntu 18.04 LTS Gets First Kernel Update with Patch for Spectre Variant 4 Flaw

Canonical released the first kernel security update for its Ubuntu 18.04 LTS (Bionic Beaver) operating system to fix a security issue that affects this release of Ubuntu and its derivatives.

As you can imagine, the kernel security update patches the Ubuntu 18.04 LTS (Bionic Beaver) operating system against the recently disclosed Speculative Store Buffer Bypass (SSBB) side-channel vulnerability, also known as Spectre Variant 4 or CVE-2018-3639, which could let a local attacker expose sensitive information in vulnerable systems.

“Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a side-channel attack. This flaw is known as Spectre Variant 4. A lo… (read more)

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