Another Branch Prediction Attack

When Spectre and Meltdown were first announced earlier this year, pretty much everyone predicted that there would be many more attacks targeting branch prediction in microprocessors. Here's another one: In the new attack, an attacker primes the PHT and running branch instructions so that the PHT...

Elevation of Privilege Vulnerability in Multiple AMD Products

AMD EPYC Server, etc. are central processing unit CPU products of AMD, USA. A security vulnerability exists in several AMD products. An attacker can exploit the vulnerability to elevate privileges...

OpenSSL -- multiple vulnerabilities

The OpenSSL project reports: Constructed ASN.1 types with a recursive definition could exceed the stack CVE-2018-0739 Constructed ASN.1 types with a recursive definition such as can be found in PKCS7 could eventually exceed the stack given malicious input with excessive recursion. This could resu...

CVE-2018-8931

The AMD Ryzen, Ryzen Pro, and Ryzen Mobile processor chips have insufficient access control for the Secure Processor, aka RYZENFALL-1...

CVE-2018-8936

The AMD EPYC Server, Ryzen, Ryzen Pro, and Ryzen Mobile processor chips allow Platform Security Processor PSP privilege escalation...

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...

hw: cpu: speculative execution permission faults handling

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...

Debian DSA-4120-1 : linux - security update (Meltdown) (Spectre)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2017-5715 Multiple researchers have discovered a vulnerability in various processors supporting speculative execution, enabling an attacker...

Intel Issues Updated Spectre Firmware Fixes For Newer Processors

Intel has issued updated microcode to help protect its newer processors from Spectre security exploits. The Santa Clara, Calif.-based company’s new microcode updates – which impact its newer chip platforms, such as Kaby Lake, Coffee Lake, and Skylake – have been released to OEM customers and...

hw: cpu: speculative execution permission faults handling

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...

Intel Releases New Spectre Patch Update for Skylake Processors

After leaving million of devices at risk of hacking and then rolling out broken patches, Intel has now released a new batch of security patches only for its Skylake processors to address one of the Spectre vulnerabilities Variant 2. For those unaware, Spectre Variant 1, Variant 2 and Meltdown...

USN-3548-2: Linux kernel (HWE) vulnerability

USN-3548-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. Jay Vosburgh discovered a logic error in the x86-64 syscall entry implementation in the Linux...

Scientific Linux Security Update : kernel on SL7.x x86_64 (20180125) (Meltdown) (Spectre)

Security Fixes : 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...

Unbootable state for AMD devices in Windows 8.1 and Windows Server 2012 R2

Unbootable state for AMD devices in Windows 8.1 and Windows Server 2012 R2 Summary This update resolves the following issue: Microsoft has received reports of some customers on a small subset of older AMD processors getting into an unbootable state after you install January 3, 2018—KB4056898...

Meltdown and Spectre Attacks | Cloud Foundry

Severity Advisory/Critical Description Meltdown and Spectre exploit critical vulnerabilities in modern processors. These hardware bugs allow programs to steal data which is currently processed on the computer. While programs are typically not permitted to read data from other programs, a maliciou...

January 18, 2018—KB4075199 (OS Build 10240.17741)

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January 17, 2018—KB4057142 (OS Build 14393.2034)

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January 17, 2018—KB4057144 (OS Build 15063.877)

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Meltdown / Spectre Mitigation Is a Work in Progress

Since researchers disclosed the Meltdown and Spectre vulnerabilities on Jan. 3, vendors and IT departments have been consumed trying to figure out how to properly address the potentially devastating effects of these kernel-level bugs. By now, one thing we know for sure is that dealing with the...

Untrusted search path in Intel Graphics Driver allows unprivileged user to elevate privileges via local access

Summary: Untrusted Path which can potentially lead to an elevation of privilege. Reference CVE-2017-5696. Description: Older versions 1 of the some Intel® Graphics Drivers for Windows 2 Code Branches contain a potentially untrusted search path which may allow a local attacker to execute code with...