Spectre/Meltdown Archives - IT Jungle

Security Vulnerability In VIOS, AIX, And Maybe IBM i

November 23, 2020 Timothy Prickett Morgan

IBM i shops that use the Virtual I/O Server, which is a cut-down version of the AIX implementation of Unix created by Big Blue, have to be aware that there is a security vulnerability that affects recent releases of AIX and VIOS.

The vulnerability, announced in Security Vulnerability CVE-2020-4788, affects Power9 machinery running VIOS 3.1 or AIX 7.1 and AIX 7.2, and under what are called “extenuating circumstances” the vulnerability could allow a local user on the system to obtain sensitive information stored on the L1 cache on the Power9 cores.

The vulnerability was reported on November 18, and …
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For Entry IBM Shops, Power9 Is About Performance And Security

December 10, 2018 Timothy Prickett Morgan

Buying new systems costs money, often a lot of money relative to the size of the overall IT budget and the revenue and profit streams of the companies for which they work and, in essence, actually embody what that company really is. So in a sense, systems are always worth the money if they are actually letting people do their work properly.

That said, there is always an argument to be made for doing an upgrade – often actually a migration because the system itself cannot easily or economically be upgraded – and another set of arguments for waiting a …
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