[SECURITY] [DSA 4274-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4274-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 16, 2018 https://www.debian.org/security/faq -...

Debian: Security Advisory (DSA-4274-1)

The remote host is missing an update for the Debian 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 CPUs Undermined By Fresh Speculative Execution Flaws

UPDATE Three new speculative execution design flaws in Intel CPUs were disclosed today, this time impacting Intel’s Software Guard Extensions SGX technology, its OS and system management mode SMM and hypervisor software. The three vulnerabilities would allow attacks on Intel Core and Xeon...

x86: Incorrect MSR_DEBUGCTL handling lets guests enable BTS

ISSUE DESCRIPTION The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must...

Debian DSA-4232-1 : xen - security update

This update provides mitigations for the 'lazy FPU' vulnerability affecting a range of Intel CPUs, which could result in leaking CPU register states belonging to another vCPU previously scheduled on the same CPU. For additional information please refer to...

[SECURITY] [DSA 4232-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4232-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff June 20, 2018 https://www.debian.org/security/faq -...

KLA11291 Microsoft Guidance for Lazy Floating Point State Restore

Speculative store bypass vulnerability in Microsoft Windows systems can be exploited to bypass security restrictions. 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...

KLA11891 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. An additional vulnerability involving side channel speculative execution has been announced and assigned CVE-2018-3665. An attacker locally could caus...

Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.14.44 and fixes at least the following security issues: This update adds KPTI mitigation for Meltdown CVE-2017-5754 on 32bit x86. The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that contains a jump bu...

MGASA-2018-0263 Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.44 and fixes at least the following security issues: By mmaping a FUSE-backed file onto a process's memory containing command line arguments or environment strings, an attacker can cause utilities from psutils or procps such as ps, w or any other...

[SECURITY] [DSA 4210-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4210-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 25, 2018 https://www.debian.org/security/faq -...

CVE-2018-3639 - Citrix XenServer Security Update

Description of Problem CVE-2018-3639 Speculative Store Bypass Disable is an issue that may affect third-party software that runs in guest VMs on Citrix XenServer. This is not an issue caused by Citrix XenServer and Citrix is unaware of any means of exploiting this issue against XenServer itself...

8 New Spectre-Class Vulnerabilities (Spectre-NG) Found in Intel CPUs

A team of security researchers has reportedly discovered a total of eight new "Spectre-class" vulnerabilities in Intel CPUs, which also affect at least a small number of ARM processors and may impact AMD processor architecture as well. Dubbed Spectre-Next Generation, or Spectre-NG, the partial...

Microsoft Issues More Spectre Updates For Intel CPUs

Microsoft has released additional Windows 10 mitigations for the Spectre side-channel flaw revealed in January, with an expanded lineup of firmware microcode updates for Intel CPUs that include the Broadwell and Haswell chipsets. The company released two Windows Update packages addressing Spectre...

HPSBHF03582 rev. 2 - KRACK Vulnerability Affecting WPA2 Wireless Security

Potential Security Impact Information Disclosure Source: University of Leuven Reported by: Intel VULNERABILITY SUMMARY Enhancement to address CVE-2017-13080 and CVE-2017-13081, which is the KRACK vulnerability that affects the security of WPA2 wireless LAN encryption. RESOLUTION A Microsoft...

Updated microcode packages fix security vulnerabilities

This update provides new microcode fixes and mitigations for Spectre CVE-2017-5715 for many Intel CPUs produced in the last 5 years. So far the Intel microcode updates are for several processors from many of Intel Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake, Gemini Lake, Apollo Lake,...

MGASA-2018-0176 Updated microcode packages fix security vulnerabilities

This update provides new microcode fixes and mitigations for Spectre CVE-2017-5715 for many Intel CPUs produced in the last 5 years. So far the Intel microcode updates are for several processors from many of Intel Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake, Gemini Lake, Apollo Lake,...

Mitigating speculative execution side channel hardware vulnerabilities

On January 3rd, 2018, Microsoft released an advisory and security updates related to a newly discovered class of hardware vulnerabilities involving speculative execution side channels known as Spectre and Meltdown that affect AMD, ARM, and Intel CPUs to varying degrees. If you haven’t had a chanc...

Mitigating speculative execution side channel hardware vulnerabilities

On January 3rd, 2018, Microsoft released an advisory and security updates related to a newly discovered class of hardware vulnerabilities involving speculative execution side channels known as Spectre and Meltdown that affect AMD, ARM, and Intel CPUs to varying degrees. If you haven’t had a chanc...

USN-3531-2: Intel Microcode regression

USN-3531-1 updated Intel microcode to the 20180108 release. Regressions were discovered in the microcode updates which could cause system instability on certain hardware platforms. At the request of Intel, we have reverted to the previous packaged microcode version, the 20170707 release. Original...