Arm processor security update downloads
Updated on 19/May/2021
This page provides download links to important resources, such as whitepapers and mitigation specifications, related to the Arm processor security update.
Cache Speculation Side-channels whitepaper
This whitepaper looks at the susceptibility of Arm implementations following recent research findings from security researchers at Google on new potential cache timing side-channels exploiting processor speculation. This paper also outlines possible mitigations that can be employed for software designed to run on existing Arm processors.
DownloadStraight-line speculation whitepaper
This whitepaper documents the possibilities for a processor to speculatively execute the instructions immediately following what should be a change in control flow, and the mitigations recommended by Arm. This concept has been named Straight-line Speculation.
Arm v8.5-A and Armv9 CPU updates
This guide details the features added to the Arm v8.5-A and Armv9 architecture which address the Spectre and Meltdown security issues.
Addressing Spectre Variant 1 (CVE-2017-5753) in software
This whitepaper provides a brief overview of the original Spectre Variant 1 attack and discusses some practical mitigation techniques that can be applied.
Firmware interfaces for mitigating cache speculation vulnerabilities
System Software on Arm systems
CVE-2017-5715, also known as Spectre variant 2, is a vulnerability in some Arm CPU designs that might allow an attacker to control the speculative execution flow within a victim execution context and disclose data that is architecturally inaccessible to the attacker. CVE-2018-3639, also known as variant 4, is a vulnerability in some Arm CPU designs that might allow a speculative read of a memory location to read a data value from before the most recent write to that memory location.
DownloadSoftware implications for Spectre/Meltdown on Arm cores
This guide offers a high-level overview of the software impact and mitigations for the exploits known as Spectre and Meltdown.
Arm Trusted Firmware exposure to speculative processor vulnerabilities
Description of Arm Trusted Firmware status and workarounds.
Cache Speculation Side-channels Linux Kernel Mitigations
Description of Cache Speculation Side-channels Linux kernel mitigations.