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...

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...

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...

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 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...

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...

Ubuntu 16.04 LTS : ARM mbed TLS vulnerabilities (USN-4267-1)

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4267-1 advisory. It was discovered that mbedtls has a bounds-check bypass through an integer overflow that can be used by an attacked to execute arbitrary code or cause a...

Ubuntu: Security Advisory (USN-4267-1)

The remote host is missing an update for the 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...

USN-4267-1: ARM mbed TLS vulnerabilities

It was discovered that mbedtls has a bounds-check bypass through an integer overflow that can be used by an attacked to execute arbitrary code or cause a denial of service. CVE-2017-18187 It was discovered that mbedtls has a vulnerability where an attacker could execute arbitrary code or cause a...

Security Bulletin: Multiple Security Vulnerabilities in OpenSSL Affect IBM Sterling B2B Integrator (CVE-2018-0734, CVE-2018-5407)

Summary Security vulnerabilities in OpenSSL affect IBM Sterling B2B Integrator Vulnerability Details CVE-ID: CVE-2018-0734 Description: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a timing side channel attack in the DSA signature algorithm. An attacker could...

Security Bulletin: IBM has announced a release for IBM Security Identity Governance and Intelligence in response to security vulnerability (CVE-2018-12404)

Summary IBM has announced a release for IBM Security Identity Governance and Intelligence IGI in response to security vulnerability. A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen...

DEBIAN-CVE-2019-18222

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks...

ALPINE-CVE-2019-18222

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks...

CVE-2019-20399

A timing vulnerability in the Scalar::checkoverflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack...

CVE-2019-20399

A timing vulnerability in the Scalar::checkoverflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack...

Information disclosure

A timing vulnerability in the Scalar::checkoverflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack...

CVE-2019-20399

A timing vulnerability in the Scalar::checkoverflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack...