找回密碼
 立即註冊
搜索
熱搜: 活動 交友 discuz
查看: 1287|回覆: 1

證實了 - 處理器超執行緒與安全漏洞有關

[複製鏈接]

252

主題

0

好友

4107

積分

論壇元老

Rank: 8Rank: 8

發表於 2019-1-10 22:08:52 |顯示全部樓層
早有懷疑,果然證實了!處理器超執行緒與安全漏洞有關。Intel新處理器除Core i9-9900K,所有近發model都關閉了超執行緒。

/...

Theo de Raadt, the founder of OpenBSD, argues that HT can no longer be trusted and should be disabled by default. /...

As we’ve previously discussed, Spectre, Meltdown, and Foreshadow are all flaws that exploit certain behavior that Intel CPUs engage in when they speculatively execute instructions. While speculative execution is a longstanding and proven technique for improving overall CPU performance, de Raadt identifies three distinct issues that have combined to create these problems.

https://www.extremetech.com/computing/276138-is-hyper-threading-a-fundamental-security-risk

PortSmash attack blasts hole in Intel's Hyper-Threading CPUs, leaves with secret crypto keys

https://www.theregister.co.uk/2018/11/02/portsmash_intel_security_attack/

To demonstrate its processing power, Intel took a Core i9-9900K, placed a pair of virtual machines on it, and gamed and streamed Player Unknown: Battlegrounds on the system. “The Core i9-9900K: best gaming processor in the world, period,” Srivatsa said.

From a security standpoint, there’s another plus: The new 9th-generation parts contain some of Intel’s first mitigations in hardware to solve the Meltdown bug, the company said.

https://www.pcworld.com/article/3311956/components-processors/intel-debuts-9th-generation-core-chips-core-i9-and-x-series-parts.html
回覆

使用道具 舉報

1萬

主題

1

好友

8萬

積分

論壇元老

Rank: 8Rank: 8

發表於 2019-1-11 20:00:34 |顯示全部樓層

貼多份過去 HKEPC

有無 HKEPC account?
貼多份過去: https://www.hkepc.com/forum/forumdisplay.php?fid=110
回覆

使用道具 舉報

您需要登錄後才可以回帖 登錄 | 立即註冊

回頂部