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New Interrupt Injection Attack Can Bypass Spectre v2 Defenses on Intel and AMD CPUs

The Hacker Newsby @TheHackersNews ()5 min read3 · 1 read
Analyze CVE-2023-20569 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

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CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2023-20569
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction
4.77%PoC

From the original article

5 min read at thehackernews.com

An unprivileged Linux program can time a hardware interrupt to land in the gap between a processor sanitizing its branch predictor and the kernel using it, re-poisoning the predictor after the defense has run. MIT CSAIL researchers Daniël Trujillo and Mengjia Yan named the technique INTERRUPT INJECTION . On an AMD Zen 2 machine running Linux 6.

The Hacker News

By @TheHackersNews · thehackernews.com

Read the full article at The Hacker News

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