hw: cpu: speculative execution branch target injection

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions a commonly used performance optimization. There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant...

hw: cpu: speculative execution branch target injection

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions a commonly used performance optimization. There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant...

hw: cpu: speculative execution branch target injection

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions a commonly used performance optimization. There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant...

hw: cpu: speculative execution bounds-check bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions a commonly used performance optimization. There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant...

Important: Red Hat Security Advisory: kernel-alt security, bug fix, and enhancement update

An update for kernel-alt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fro...

RHEL 7 : kernel-alt (RHSA-2018:0654)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0654 advisory. The kernel-alt packages provide the Linux kernel version 4.x. The following packages have been upgraded to a later upstream version:...

Description of the security update for the speculative execution side-channel vulnerabilities in Windows Server 2008: March 13, 2018

Description of the security update for the speculative execution side-channel vulnerabilities in Windows Server 2008: March 13, 2018 Summary Microsoft is aware of a new publicly disclosed class of vulnerabilities referred to as "speculative execution side-channel attacks" that affect many modern...

Intel Admits It Won't Be Possible to Fix Spectre (V2) Flaw in Some Processors

As speculated by the researcher who disclosed Meltdown and Spectre flaws in Intel processors, some of the Intel processors will not receive patches for the Spectre variant 2 side-channel analysis attack In a recent microcode revision guidance PDF, Intel admits that it would not be possible to...

BranchScope: New CPU Side-Channel Attack

A new side-channel attack that takes advantage of the speculative execution feature of modern processors to recover data from targeted users' CPUs has been disclosed It targets the "branch prediction" operations —which is the same part of a CPU speculative execution process as the one targeted ...

CVE-2018-9056

Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information to an attacker with local user access via a side-channel attack on the directional branch predictor, as demonstrated by a pattern history table PHT, aka BranchScope...

Information disclosure

Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information to an attacker with local user access via a side-channel attack on the directional branch predictor, as demonstrated by a pattern history table PHT, aka BranchScope...

CVE-2018-9056

Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information to an attacker with local user access via a side-channel attack on the directional branch predictor, as demonstrated by a pattern history table PHT, aka BranchScope...

CVE-2018-9056

CVE-2018-9056 (BranchScope) describes a side-channel vulnerability affecting processors using speculative execution, enabling local attackers to infer memory contents through the Branch Prediction Unit’s patterns, notably the Pattern History Table (PHT). Documents consistently reference a hardwar...

KVA Shadow: Mitigating Meltdown on Windows

On January 3rd, 2018, Microsoft released an advisory and security updates that relate to a new class of discovered hardware vulnerabilities, termed speculative execution side channels, that affect the design methodology and implementation decisions behind many modern microprocessors. This post...

KVA Shadow: Mitigating Meltdown on Windows

On January 3rd, 2018, Microsoft released an advisory and security updates that relate to a new class of discovered hardware vulnerabilities, termed speculative execution side channels, that affect the design methodology and implementation decisions behind many modern microprocessors. This post...

投機的実行に関する報奨金プログラムの開始

本記事は、Microsoft Security Response Center のブログ “Speculative Execution Bounty Launch” 2016 年 3 月 14 日 米国...

Security Bulletin: NVIDIA SHIELD Tablet Security Update for a Media Server Vulnerability

NVIDIA SHIELD Tablet contains a vulnerability which may lead to denial of service or escalation of privileges Go to NVIDIA Product Security. Vulnerability Details The following section summarizes the potential vulnerability. The description uses CWE™ and the risk assessment follows CVSS...

New Microsoft Bug Bounty Program Looks To Squash The Next Spectre, Meltdown

In the wake of the Meltdown and Spectre flaws, Microsoft has rolled out a new bug bounty program targeting speculative execution side channel vulnerabilities. The limited time program is open until December 31, and offers up to $250,000 for identifying new categories of speculative execution...

Intel Details CPU ‘Virtual Fences’ Fix As Safeguard Against Spectre, Meltdown Flaws

Intel introduced hardware-based protections to its new chips to protect against the Spectre and Meltdown flaws that rocked the silicon industry when the vulnerabilities were made public in early 2018. Spectre and Meltdown, which account for three variants of a side-channel analysis security issue...

Speculative Execution Bounty Launch

Today, Microsoft is announcing the launch of a limited-time bounty program for speculative execution side channel vulnerabilities. This new class of vulnerabilities was disclosed in January 2018 and represented a major advancement in the research in this field. In recognition of that threat...