Intel’s ‘Virtual Fences’ Spectre Fix Won’t Protect Against Variant 4

Spectre and Meltdown fixes for Intel chips announced in March, to be embedded into new CPUs, do not address the newly disclosed Variant 4, sources said. Intel introduced hardware-based safeguards to its new chips to protect against the Spectre and Meltdown flaws that rocked the silicon industry...

AMD / ARM / Intel - Speculative Execution Variant 4 Speculative Store Bypass

/ ======== Intro / Overview ======== After Michael Schwarz made some interesting observations, we started looking into variants other than the three already-known ones. I noticed that Intel's Optimization Manual says in section 2.4.4.5 "Memory Disambiguation": A load instruction micro-op may depe...

Multiple CPU Hardware CVE-2018-3639 Information Disclosure Vulnerability

Description Multiple CPU Hardware are prone to an information-disclosure vulnerability. Attackers can exploit this issue to obtain sensitive information that may aid in further attacks. Technologies Affected ARM Cortex A15 ARM Cortex A57 ARM Cortex A72 IBM AIX 5.3 IBM AIX 6.1 IBM AIX 7.1 IBM Aix...

Intel SGX Update and Attestation Key Recovery - US

Lenovo Security Advisory: LEN-15184 Potential Impact: Elevation of Privilege / Information Disclosure Severity: High Scope of Impact: Industry Wide CVE Identifier: CVE-2017-5691 Summary Description: Intel has discovered a vulnerability that could impact the security of Intel® Software Guard...

Unsafe Opcodes exposed in Intel SPI based products

Summary: Configuration of SPI Flash in platforms based on multiple Intel CPUs allows a local attacker to alter the behavior of the SPI Flash, potentially leading to a Denial of Service. This issue has been root-caused, and the mitigation has been validated and is available. Description:...

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...

Intel Q3’17 ME 6.x/7.x/8.x/9.x/10.x/11.x, SPS 4.0, and TXE 3.0 Security Review Cumulative Update

Summary: In response to issues identified by external researchers, Intel has performed an in-depth comprehensive security review of our Intel® Management Engine ME, Intel® Server Platform Services SPS, and Intel® Trusted Execution Engine TXE with the objective of enhancing firmware resilience. As...

SUSE SLES11 Security Update : Recommended update for tboot (SUSE-SU-2017:3114-1)

This update for tboot provides the following fix: Security issue fixed : - CVE-2014-5118: tboot: bypass of measured boot bsc889339 Bug fixes : - Fixed failed trusted boot on some systems like Intel Xeon 'Purley 8s' processors. The following error message showed: 'TBOOT: wait-for-sipi loop...

SUSE-SU-2017:3114-1 Recommended update for tboot

This update for tboot provides the following fix: Security issue fixed: - CVE-2014-5118: tboot: bypass of measured boot bsc889339 Bug fixes: - Fixed failed trusted boot on some systems like Intel Xeon 'Purley 8s' processors. The following error message showed: 'TBOOT: wait-for-sipi loop timed-out...

SUSE-SU-2017:3090-1 Recommended update for tboot

This update for tboot fixes the following issues: Security issue fixed: - CVE-2017-16837: Certain function pointers in Trusted Boot tboot through 1.9.6 are notvalidated and can cause arbitrary code execution, which allows local users tooverwrite dynamic PCRs of Trusted Platform Module TPM by h...

Design/Logic Flaw

Incorrect check in Intel processors from 6th and 7th Generation Intel Core Processor Families, Intel Xeon E3-1500M v5 and v6 Product Families, and Intel Xeon E3-1200 v5 and v6 Product Families allows compromised system firmware to impact SGX security via incorrect early system state...

CVE-2017-5691

CVE-2017-5691 covers an incorrect check in Intel processors (6th/7th Gen Core, Xeon E3-1500M v5/v6, E3-1200 v5/v6) that can allow a compromised system firmware to impact Intel SGX via an incorrect early system state. Public sources identify the affected hardware and provide remediation guidance. ...

CVE-2017-5691: Undefined Security Weakness

Incorrect check in Intel processors from 6th and 7th Generation Intel Core Processor Families, Intel Xeon E3-1500M v5 and v6 Product Families, and Intel Xeon E3-1200 v5 and v6 Product Families allows compromised system firmware to impact SGX security via incorrect early system state...

April 11, 2017—KB4015547 (Security-only update)

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April 11, 2017—KB4015550 (Monthly Rollup)

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RHEL 6 : kernel (RHSA-2016:1489)

An update for kernel is now available for Red Hat Enterprise Linux 6.7 Extended Update Support. 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...

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

An update for kernel is now available for Red Hat Enterprise Linux 6.7 Extended Update Support. 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...

Linux/ARM - Connect back to {ip:port} with /bin/sh - 95 bytes

Linux/ARM - Connect back to ip:port with /bin/sh - 95 bytes. Shellcode exploit for arm platform / Title : Linux/ARM - Connect back to ip:port with /bin/sh Length : 95 bytes Date : 2014-06-03 Author : Xeon Tested : ARM1176 rev6 v6l / include include char shellcode =...

Scientific Linux Security Update : kernel on SL7.x x86_64 (20151208)

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as AC alignment check exception and DB debug exception...

CentOS 7 : kernel (CESA-2015:2552)

Updated kernel packages that fix two security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detail...