• Patch Lady – we have another Spectre/Meltdown

    Posted on August 6, 2019 at 21:52 CDT by • Comment in the Forums

    So included in the July patches was another Spectre/Meltdown patch that the information about it is just coming out today.  I’m still not convinced that we’ve seen actual attacks using Spectre/Meltdown nor am I convinced that we will see it in the wild.  Rather it’s my opinion that it will be used in targeted attacks but not in widespread ones.  Nevertheless, once again there’s another variant that got patched in the July updates:

     

    SWAPGS Spectre Side-Channel Vulnerability
    08/06/2019 08:21 PM EDT

     

    Original release date: August 6, 2019
    The Cybersecurity and Infrastructure Security Agency (CISA) is aware of a vulnerability (CVE-2019-1125) known as SWAPGS, which is a variant of Spectre Variant 1—that affects modern computer processors. This vulnerability can be exploited to steal sensitive data present in a computer systems’ memory.

    Spectre is a flaw an attacker can exploit to force a program to reveal its data. The name derives from “speculative execution”—an optimization method a computer system performs to check whether it will work to prevent a delay when actually executed. Spectre affects almost all devices including desktops, laptops, and cloud servers.

    CISA encourages users and administrators to review the following guidance, refer to their hardware and software vendors for additional details, and apply an appropriate patch when available:

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