Ubuntu 16.04 LTS : WebKitGTK+ vulnerabilities (USN-3530-1)

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3530-1 advisory. It was discovered that speculative execution performed by modern CPUs could leak information through a timing side-channel attack, and that this could be...

Ubuntu: Security Advisory (USN-3530-1)

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...

ESXi 5.5 / 6.0 / 6.5 / Hypervisor-Assisted Guest Remediation for Speculative Execution (VMSA-2018-0004) (Spectre) (remote check)

The remote VMware ESXi host is version 5.5, 6.0, or 6.5 and is missing a security patch. It is, therefore, missing security updates that add hypervisor-assisted guest remediation for a speculative execution vulnerability CVE-2017-5715. These updates will allow guest operating systems to use...

VMware Player 12.x < 12.5.9 / 14.x < 14.1.1 Multiple Vulnerabilities (VMSA-2018-0004) (VMSA-2018-0005) (Spectre)

The version of VMware Player installed on the remote Windows host is 14.x prior to 14.1.1 or 12.x prior to 12.5.9. It is, therefore, missing security updates that add hypervisor-assisted guest remediation for a speculative execution vulnerability CVE-2017-5715. These updates will allow guest...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4004)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4004 advisory. - kABI: Revert kABI: Make the bootcpudata look normal Konrad Rzeszutek Wilk CVE-2017-5715 - userns: prevent speculative execution Elena Reshetova...

OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0007) (Spectre)

The remote OracleVM system is missing necessary patches to address critical security updates : - x86/ibrs: Remove 'ibrsdump' and remove the prdebug Konrad Rzeszutek Wilk Orabug: 27350825 - kABI: Revert kABI: Make the bootcpudata look normal Konrad Rzeszutek Wilk CVE-2017-5715 - userns: prevent...

VMware Workstation 12.x < 12.5.9 / 14.x < 14.1.1 Multiple Vulnerabilities (VMSA-2018-0004) (VMSA-2018-0005) (Spectre)

The version of VMware Workstation installed on the remote Windows host is 14.x prior to 14.1.1 or 12.x prior to 12.5.9. It is, therefore, missing security updates that add hypervisor-assisted guest remediation for a speculative execution vulnerability CVE-2017-5715. These updates will allow guest...

Ubuntu: Security Advisory (USN-3531-1)

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...

USN-3531-1 intel-microcode update

It was discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. CVE-2017-5715 This...

Meltdown and Spectre fallout: patching problems persist

Last week, the disclosure by multiple teams from Graz and Pennsylvania University, Rambus, Data61, Cyberus Technology, and Google Project Zero of vulnerabilities under the aliases Meltdown and Spectre rocked the security world, sending vendors scurrying to create patches, if at all possible, and...

USN-3530-1: WebKitGTK+ vulnerabilities

It was discovered that speculative execution performed by modern CPUs could leak information through a timing side-channel attack, and that this could be exploited in web browser JavaScript engines. If a user were tricked in to opening a specially crafted website, an attacker could potentially...

USN-3530-1 webkit2gtk vulnerabilities

It was discovered that speculative execution performed by modern CPUs could leak information through a timing side-channel attack, and that this could be exploited in web browser JavaScript engines. If a user were tricked in to opening a specially crafted website, an attacker could potentially...

Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) regression (USN-3522-4)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3522-4 advisory. USN-3522-2 fixed a vulnerability in the Linux Hardware Enablement kernel for Ubuntu 14.04 LTS to address Meltdown CVE-2017-5754. Unfortunately, that update...

Ubuntu 16.04 LTS : Linux kernel regression (USN-3522-3)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3522-3 advisory. USN-3522-1 fixed a vulnerability in the Linux kernel to address Meltdown CVE-2017-5754. Unfortunately, that update introduced a regression where a few systems...

USN-3522-4 linux-lts-xenial regression

USN-3522-2 fixed a vulnerability in the Linux Hardware Enablement kernel for Ubuntu 14.04 LTS to address Meltdown CVE-2017-5754. Unfortunately, that update introduced a regression where a few systems failed to boot successfully. This update fixes the problem. We apologize for the inconvenience...

USN-3523-2: Linux kernel (HWE) vulnerabilities

USN-3523-1 fixed vulnerabilities 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 discovered that microprocessors utilizing speculative execution and indirect branch...

USN-3525-1: Linux kernel vulnerability

Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory...

Ubuntu 17.10 : linux vulnerabilities (USN-3523-1) (Meltdown)

Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory...

Ubuntu: Security Advisory (USN-3522-1)

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...

Multiple CPUs - Information Leak Using Speculative Execution Exploit

Exploit for hardware platform in category dos / poc == INTRODUCTION == This is a bug report about a CPU security issue that affects processors by Intel, AMD and to some extent ARM. I have written a PoC for this issue that, when executed in userspace on an Intel Xeon CPU E5-1650 v3 machine with a...