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Still remember Specter?, a vulnerability that went viral some time ago, now the vulnerability has version 2 which reportedly affects several devices including AMD Ryzen.
“AMD is aware of a potential vulnerability affecting AMD CPUs where the OS is on IPBB to flush the return address predictor. This may allow for CVE-2017-5715 (previously known as Specter Variant 2) attacks based on RET predictions in cases where the OS is on IBPB without the use of additional software mitigations, to flush the return address predictor. > CVE-2022-23824 > IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.” said AMD.
However regarding the vulnerability, the latest Patch Tuesday that Microsoft released yesterday fixes variant 2 of Specter, including an AMD CPU vulnerability marked under ID “CVE-2022-23824” that affects almost all AMD Ryzen desktop, notebook, and server processor SKUs, EPYC. , and Athlon. However, the latest Zen 4-based Ryzen 7000 chip is not affected by the vulnerability.
With that, for you AMD Ryzen, EPYC and Athlon users other than the Ryzen 7000 series, you really have to update your Windows to a newer version, guys, and it’s not just Windows 11 that gets this upgrade, including Windows 10 as well.
Immediately, for you AMD device users, you can immediately update your Windows 10 or 11 to cumulative updates November 2022 available on the Windows Update page, guys.
You can read more about this on the AMD page followingon that page, it is also explained what processor is affected by this vulnerability.
Via : AMD
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