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...

The vulnerability of the AMD Secure Processor technology in processors like Ryzen, Ryzen Pro, and Ryzen Mobile allows for writing to the secure area of the processor.

The vulnerability of the AMD Secure Processor-based processors, including Ryzen, Ryzen Pro, and Ryzen Mobile, is related to deficiencies in the implementation of security functions. Exploiting this vulnerability allows an attacker who has access to the targeted computer and possesses administrato...

The vulnerability affects the implementation of the AMD Secure Processor technology in CPUs such as Ryzen, Ryzen Pro, Ryzen Mobile, and EPYC Server. This allows malicious code to be injected into a computer’s BIOS.

The vulnerability of AMD Secure Processor-based processors, such as Ryzen, Ryzen Pro, Ryzen Mobile, and EPYC Server, stems from the absence of a mechanism for detecting damage to flash memory contents. Exploiting this vulnerability allows an attacker who has access to the targeted computer and...

The vulnerability of the Promontory chip, which is used together with Ryzen and Ryzen Pro processors, is related to the presence of undeclared capabilities in its microprogramming software. This vulnerability allows access to physical memory.

The vulnerability of the Promontory chip, which is used together with Ryzen and Ryzen Pro processors, is related to the presence of undeclared capabilities in its microprogramming environment. Exploiting this vulnerability allows a perpetrator who has access to the targeted computer and possesses...

The vulnerability of AMD Secure Processor technology in Ryzen and Ryzen Pro processors allows for reading from the protected area of the processor.

The vulnerability of AMD Secure Processor-based Ryzen and Ryzen Pro processors lies in the implementation flaws of security functions. Exploiting this vulnerability allows an attacker with access to the targeted computer and administrative privileges to read from the protected areas of the...

The vulnerability in the implementation of AMD Secure Processor technology in Ryzen and Ryzen Pro processors allows for the disabling of System Management Mode protection.

The vulnerability of AMD Secure Processor-based Ryzen and Ryzen Pro processors lies in the implementation flaws of security functions. Exploiting this vulnerability allows an attacker with access to the targeted computer and administrative privileges to disable the System Management Mode SMM...

The vulnerability in the implementation of the AMD Secure Processor technology in EPYC Server processors allows for the disabling of System Management Mode protection.

The vulnerability of the AMD Secure Processor implementation in EPYC Server processors lies in the deficiencies in the implementation of the loader responsible for verifying the functionality of the hardware, as well as for launching the AMD Secure Processor module. Exploiting this vulnerability...

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 ...

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...