Updated gnutls packages fix security vulnerabilities

The updated packages fix security vulnerabilities: It was found that the GnuTLS implementation of HMAC-SHA-256 and HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical...

HPSBHF03597 rev. 3 - PortSmash Side-Channel Vulnerability

Potential Security Impact Information disclosure. Source: HP, HP Product Security Response Team PSRT Reported By: Tampere University of Technology, Finland and Technical University, Cuba VULNERABILITY SUMMARY An industry-wide vulnerability has been reported which impacts CPUs that use Simultaneou...

F5 Networks BIG-IP : Lazy FP state restore vulnerability (K21344224)

The version of F5 Networks BIG-IP installed on the remote host is prior to 13.1.1.2 / 14.0.0.3 / 14.1.0. It is, therefore, affected by a vulnerability as referenced in the K21344224 advisory. System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocesso...

Vulnerability in OpenSSL - Microarchitecture timing vulnerability in ECC scalar multiplication

OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been shown to be vulnerable to a microarchitecture timing side channel attack. An attacker with sufficient access to mount local timing attacks during ECDSA signature generation could recover the private key. Found by Alejandro...

BSA-2018-740

Security Advisory ID : BSA-2018-740 Component : CPU featuring SMT Revision : 1.0: Initial A group a researchers has discover a new vulnerability being called PortSmash, impacting all CPUs that use a Simultaneous Multithreading SMT architecture. SMT is a technology that allows multiple computing...

F5 Networks BIG-IP : Side-channel processor vulnerabilities (K91229003)

The following three side-channel attacks were publicly disclosed on January 3, 2018 : CVE-2017-5715 Spectre-BTB previously known as Spectre Variant 2 Branch target injection Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosu...

Intel (Skylake / Kaby Lake) - 'PortSmash' CPU SMT Side-Channel

Summary This is a proof-of-concept exploit of the PortSmash microarchitecture attack, tracked by CVE-2018-5407. Setup Prerequisites A CPU featuring SMT e.g. Hyper-Threading is the only requirement. This exploit code should work out of the box on Skylake and Kaby Lake. For other SMT architectures,...

Side-Channel Attack

libgnutls.so is vulnerable to plain text recovery via cache-based side channel. An attacker is able to use a combination of Just in Time Prime+probe and Lucky-13 attacks to recover plain text using crafted packets in a cross-VM setting...

RHEL 7 : gnutls (RHSA-2018:3050)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3050 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such as...

openSUSE Security Update : xen (openSUSE-2018-1331) (Foreshadow)

This update for xen fixes the following issues : XEN was updated to the Xen 4.9.3 bug fix only release bsc1027519 - CVE-2018-17963: qemudeliverpacketiov accepted packet sizes greater than INTMAX, which allows attackers to cause a denial of service or possibly have unspecified other impact...

RHEL 7 : libvirt (RHSA-2018:3398)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:3398 advisory. The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

Important: Red Hat Security Advisory: libvirt security update

An update for libvirt 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...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

Important: Red Hat Security Advisory: libvirt security update

An update for libvirt is now available for Red Hat Enterprise Linux 6.4 Advanced 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...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

Important: Red Hat Security Advisory: libvirt security update

An update for libvirt is now available for Red Hat Enterprise Linux 7.3 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...