2824 matches found
USN-3654-1 linux, linux-aws, linux-kvm, vulnerabilities
Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memor...
USN-3653-2: Linux kernel (HWE) vulnerabilities
USN-3653-1 fixed vulnerabilities and added mitigations 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. Jann Horn and Ken Johnson discovered that microprocessors utilizing...
USN-3653-2 linux-hwe, linux-azure, linux-gcp, linux-oem vulnerabilities
USN-3653-1 fixed vulnerabilities and added mitigations 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. Jann Horn and Ken Johnson discovered that microprocessors utilizing...
USN-3653-1: Linux kernel vulnerabilities
Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memor...
USN-3652-1: Linux kernel vulnerability
Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memor...
USN-3652-1 linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem vulnerability
Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memor...
CPU Side-Channel Information Disclosure Vulnerabilities: May 2018
On May 21, 2018, researchers disclosed two vulnerabilities that take advantage of the implementation of speculative execution of instructions on many modern microprocessor architectures to perform side-channel information disclosure attacks. These vulnerabilities could allow an unprivileged, loca...
AMD ARM Intel - Speculative Execution Variant 4 Speculative Store Bypass
AMD ARM Intel - Speculative Execution Variant 4 Speculative Store Bypass / ======== Intro / Overview ======== After Michael Schwarz made some interesting observations, we started looking into variants other than the three already-known ones. I noticed that Intel's Optimization Manual says in...
Ubuntu: Security Advisory (USN-3652-1)
The remote host is missing an update for the SPDX-FileCopyrightText: 2018 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...
Ubuntu: Security Advisory (USN-3653-1)
The remote host is missing an update for the SPDX-FileCopyrightText: 2018 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...
Ubuntu: Security Advisory (USN-3653-2)
The remote host is missing an update for the SPDX-FileCopyrightText: 2018 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...
Ubuntu: Security Advisory (USN-3655-1)
The remote host is missing an update for the SPDX-FileCopyrightText: 2018 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...
Intel the reproduction of new vulnerabilities or be subjected to hackers implant attack script-vulnerability warning-the black bar safety net
5 on 22, reported,yesterday, Intel and Microsoft announced a Spectre and Meltdown security vulnerability, the new variant-the“variant 4”. The new variant is the use of“Speculative Store Bypass”, the defect enables the Processor chip to a potential unsafe area to disclose sensitive information...
Ubuntu: Security Advisory (USN-3654-1)
The remote host is missing an update for the SPDX-FileCopyrightText: 2018 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...
AMD / ARM / Intel - Speculative Execution Variant 4 Speculative Store Bypass
/ ======== Intro / Overview ======== After Michael Schwarz made some interesting observations, we started looking into variants other than the three already-known ones. I noticed that Intel's Optimization Manual says in section 2.4.4.5 "Memory Disambiguation": A load instruction micro-op may depe...
SUSE-SU-2018:1362-1 Security update for qemu
This update for qemu fixes several issues. This security issue was fixed: - CVE-2018-3639: Spectre v4 vulnerability mitigation support for KVM guests bsc1092885. Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prio...
Analysis and mitigation of speculative store bypass (CVE-2018-3639)
In January, 2018, Microsoft published an advisory and security updates for a new class of hardware vulnerabilities involving speculative execution side channels known as Spectre and Meltdown. In this blog post, we will provide a technical analysis of an additional subclass of speculative executio...
Microsoft Guidance for Rogue System Register Read
Executive Summary On January 3, 2018, Microsoft released an advisory and security updates related to a newly discovered class of hardware vulnerabilities known as Spectre and Meltdown involving speculative execution side channels that affect AMD, ARM, and Intel CPUs to varying degrees. On May 21,...
KLA11253 Microsoft Advisory for Microsoft Windows
On January 3, 2018, Microsoft released an advisory and security updates related to a newly-discovered class of hardware vulnerabilities known as Spectre and Meltdown involving speculative execution side channels that affect AMD, ARM, and Intel CPUs to varying degrees. On May 21st, a new subclass ...
KLA11893 Microsoft Advisory for Microsoft Products (ESU)
Microsoft released an advisory and security updates related to a newly-discovered class of hardware vulnerabilities known as Spectre and Meltdown. Also, a new subclass of speculative execution side channel vulnerabilities known as Speculative Store Bypass SSB has been announced and assigned...