4044 matches found
USN-3654-1: 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-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-3653-1: 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...
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...
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...
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 Stor...
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...
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-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...
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...
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 Stor...
UBUNTU-CVE-2018-3640
Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized disclosure of system parameters to an attacker with local user access via a side-channel analysis, aka Rogue System Register Read RSRE, Variant 3a...
UBUNTU-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 Stor...
Wicked Botnet Uses Passel of Exploits to Target IoT
Yet another variant of the Mirai botnet has appeared on the scene, but this one has a twist: The code is integrated with at least three exploits that target unpatched IoT devices, including closed-circuit cameras and Netgear routers. It also has ties to a web of other botnets, made for DDoS...
CPU hardware utilizing speculative execution may be vulnerable to cache side-channel attacks
Overview CPU hardware utilizing speculative execution may be vulnerable to cache timing side-channel analysis. Two vulnerabilities are identified, known as "Variant 3a" and "Variant 4". Description Speculative execution is a technique used by many modern processors to improve performance by...