AMD Downplays CPU Threat Opening Chips to Data Leak Attacks

AMD is seeking to downplay side-channel attacks that can leak potentially sensitive data from its processors released between 2011 and 2019. The “Take A Way” attack, so-called by researchers with the Graz University of Technology in a new analysis this weekend, is a side-channel attack...

AMD Downplays CPU Threat Opening Chips to Data Leak Attacks

AMD is seeking to downplay side-channel attacks that can leak potentially sensitive data from its processors released between 2011 and 2019. The “Take A Way” attack, so-called by researchers with the Graz University of Technology in a new analysis this weekend, is a side-channel attack...

9 Years of AMD Processors Vulnerable to 2 New Side-Channel Attacks

AMD processors from as early as 2011 to 2019 carry previously undisclosed vulnerabilities that open them to two new different side-channel attacks, according to a freshly published research. Known as "Take A Way," the new potential attack vectors leverage the L1 data L1D cache way predictor in...

9 Years of AMD Processors Vulnerable to 2 New Side-Channel Attacks

AMD processors from as early as 2011 to 2019 carry previously undisclosed vulnerabilities that open them to two new different side-channel attacks, according to a freshly published research. Known as "Take A Way," the new potential attack vectors leverage the L1 data L1D cache way predictor in...

MGASA-2020-0130 Updated mbedtls packages fix security vulnerabilities

Updated mbedtls packages fix security vulnerabilities: If Mbed TLS is running in an SGX enclave and the adversary has control of the main operating system, they can launch a side channel attack to recover the RSA private key when it is being imported. Found by Alejandro Cabrera Aldaya and Billy...

Updated mbedtls packages fix security vulnerabilities

Updated mbedtls packages fix security vulnerabilities: If Mbed TLS is running in an SGX enclave and the adversary has control of the main operating system, they can launch a side channel attack to recover the RSA private key when it is being imported. Found by Alejandro Cabrera Aldaya and Billy...

Intel SGX and Processor Side Channel Data Leakage Vulnerabilities - Lenovo Support US

Lenovo Security Advisory: LEN-30553 Potential Impact: Information disclosure, escalation of privilege Severity: Medium Scope of Impact: Industry-wide CVE Identifier: CVE-2020-0551, CVE-2020-0561 Summary Description: Intel reported potential security vulnerabilities in some Intel Processors that m...

Updated xen packages fix security vulnerability

- Updated from 4.12.0 to 4.12.1 - Device quarantine for alternate pci assignment methods XSA-306 - x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 - TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 - VCPUOPinitialise DoS XSA-296, CVE-2019-18420...

Xen Arm-Based CPU Speculation past the ERET Instruction (XSA-312)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a speculative memory accesses vulnerability. Some CPUs can speculate past an ERET instruction and potentially perform speculative accesses to memory before processing the exception return...

hw: TSX Transaction Asynchronous Abort (TAA)

A flaw was found in the way Intel CPUs handle speculative execution of instructions when the TSX Asynchronous Abort TAA error occurs. A local authenticated attacker with the ability to monitor execution times could infer the TSX memory state by comparing abort execution times. This could allow...

hw: TSX Transaction Asynchronous Abort (TAA)

A flaw was found in the way Intel CPUs handle speculative execution of instructions when the TSX Asynchronous Abort TAA error occurs. A local authenticated attacker with the ability to monitor execution times could infer the TSX memory state by comparing abort execution times. This could allow...

Security Bulletin: Vulnerabilities have been identified in OpenSSL and the Kernel shipped with the DS8000 Hardware Management Console (HMC)

Summary The updates indicated below have been released to address the following vulnerabilities: OpenSSL vulnerabilites - CVE-2019-1559, CVE-2018-0734 Linux Kernel vulnerabilites - CVE-2019-11477, CVE-2019-11478 and CVE-2019-11479 Vulnerability Details CVEID: CVE-2019-1559 DESCRIPTION: If an...

VulnCheck KEV: CVE-2018-3639

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative...

FreeBSD : Mbed TLS -- Side channel attack on ECDSA (b70b880f-5727-11ea-a2f3-001cc0382b2f)

Janos Follath reports : Our bignum implementation is not constant time/constant trace, so side channel attacks can retrieve the blinded value, factor it as it is smaller than RSA keys and not guaranteed to have only large prime factors, and then, by brute force, recover the key. C Tenable Network...

FreeBSD : Mbed TLS -- Cache attack against RSA key import in SGX (056ea107-5729-11ea-a2f3-001cc0382b2f)

Janos Follath reports : If Mbed TLS is running in an SGX enclave and the adversary has control of the main operating system, they can launch a side channel attack to recover the RSA private key when it is being imported. The attack only requires access to fine grained measurements to cache usage...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2020-1158)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for libgcrypt (EulerOS-SA-2020-1114)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP5 : libgcrypt (EulerOS-SA-2020-1114)

According to the version of the libgcrypt packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - The mpipowm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing...

hw: TSX Transaction Asynchronous Abort (TAA)

A flaw was found in the way Intel CPUs handle speculative execution of instructions when the TSX Asynchronous Abort TAA error occurs. A local authenticated attacker with the ability to monitor execution times could infer the TSX memory state by comparing abort execution times. This could allow...

Mbed TLS -- Cache attack against RSA key import in SGX

Janos Follath reports: If Mbed TLS is running in an SGX enclave and the adversary has control of the main operating system, they can launch a side channel attack to recover the RSA private key when it is being imported. The attack only requires access to fine grained measurements to cache usage...