August 14, 2018—KB4343909 (OS Build 17134.228)

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August 14, 2018—KB4343887 (OS Build 14393.2430)

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Microsoft Guidance to mitigate L1TF variant

Executive Summary On January 3, 2018, Microsoft released an advisory and security updates for a new class of hardware vulnerabilities involving speculative execution side channels known as Spectre and Meltdown. Microsoft is aware of a new speculative execution side channel vulnerability known as ...

A week in security (August 6 – August 12)

Last week, we published a review of exploit kits, talked about everyday tech that can give you a headache, and showed how to protect RDP access from ransomware. We also published a study on the true cost of cybercrime. Other news: Discovered at Black Hat: WhatsApp "message manipulation" Source: T...

Analysis and mitigation of L1 Terminal Fault (L1TF)

In January 2018, Microsoft released 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 a new speculative execution side channel...

Analysis and mitigation of L1 Terminal Fault (L1TF)

In January 2018, Microsoft released 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 a new speculative execution side channel...

NVIDIA Graphics Driver Multiple Vulnerabilities (including fixes for Intel Speculative Side Channel Vulnerabilities) - US

Lenovo Security Advisory: LEN-16730 Potential Impact: Denial of service, possible escalation of privilege, exfiltration of privileged memory Severity: High Scope of Impact: Industry-wide CVE Identifier: CVE-2017-5753, CVE-2017-6266, CVE-2017-6267, CVE-2017-6268, CVE-2017-6269, CVE-2017-6270,...

NVIDIA Graphics Driver Multiple Vulnerabilities (including fixes for Intel Speculative Side Channel Vulnerabilities) - Lenovo Support US

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Security Bulletin: IBM Cloud Manager is affected by the vulnerabilities known as Spectre and Meltdown

Summary IBM Cloud Manager is affected by security vulnerabilities known as Spectre and Meltdown, which can enable CPU data cache timing to be abused to bypass conventional memory security restrictions to gain access to privileged memory that should be inaccessible. Vulnerability Details CVEID:...

Security Bulletin: IBM Security Identity Governance and Intelligence has released a fixpack in response to the vulnerabilities known as Spectre and Meltdown

Summary IBM has released the following fixpack for IBM Security Identity Governance and Intelligence in response to CVE-2017-5753 and CVE-2017-5754 Vulnerability Details CVEID: CVE-2017-5753 DESCRIPTION: Intel Haswell Xeon, AMD PRO and ARM Cortex A57 CPUs could allow a local authenticated attacke...

Security Bulletin: IBM QRadar Network Security has released fixpack in response to the vulnerabilities known as Spectre and Meltdown

Summary IBM has released the following fixpack for IBM QRadar Network Security in response to CVE-2017-5753, CVE-2017-5715 and CVE-2017-5754. Vulnerability Details CVEID: CVE-2017-5753 CVEID: CVE-2017-5754 CVEID: CVE-2017-5715 Affected Products and Versions IBM QRadar Network Security 5.4.0...

Photon OS 2.0 : linux (PhotonOS-PHSA-2018-2.0-0010) (Meltdown) (deprecated)

An update of linux packages for PhotonOS has been released. This kernel update fixes vulnerability CVE-2017-5754 which is commonly known as Meltdown vulnerability. C Tenable Network Security, Inc. @DEPRECATED@ Disabled on 2/7/2019 The descriptive text and package checks in this plugin were...

Spectre Will Haunt Us For a Long Time

During a recent Congressional hearing, Senators voiced concerns about the ongoing Spectre and Meltdown vulnerabilities. While the technical details were predictably glossed over, most of the hearing focused on Intel informing Chinese partners about the flaws six months before they went public...

CPU July 2018

A Critical Patch Update is a collection of patches for multiple security vulnerabilities. Critical Patch Update patches are usually cumulative, but each advisory describes only the security fixes added since the previous Critical Patch Update advisory. Thus, prior Critical Patch Update advisories...

Chrome Now Features Site Isolation to Defend Against Spectre

Google introduced new security mitigations for its Chrome browser to defend against recently discovered Spectre variants. The new security feature, called site isolation, essentially isolates different browser work processes between various browser tabs. That means one tab’s webpage rendering and...

Google Enables 'Site Isolation' Feature By Default For Chrome Desktop Users

Google has by default enabled a security feature called "Site Isolation" in its web browser with the release of Chrome 67 for all desktop users to help them protect against many online threats, including Spectre and Meltdown attack. Site Isolation is a feature of the Google Chrome web browser tha...

Google Enables 'Site Isolation' Feature By Default For Chrome Desktop Users

Google has by default enabled a security feature called "Site Isolation" in its web browser with the release of Chrome 67 for all desktop users to help them protect against many online threats, including Spectre and Meltdown attack. Site Isolation is a feature of the Google Chrome web browser tha...

Two New Spectre-Class CPU Flaws Discovered—Intel Pays $100K Bounty

Intel has paid out a $100,000 bug bounty for new processor vulnerabilities that are related to Spectre variant one CVE-2017-5753. The new Spectre-class variants are tracked as Spectre 1.1 CVE-2018-3693 and Spectre 1.2, of which Spectre 1.1 described as a bounds-check bypass store attack has been...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel 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...

WebAssembly Changes Could Ruin Meltdown/Spectre Browser Patches

Upcoming changes to the WebAssembly Wasm format may defang the browser patches for infamous side-channel attacks Meltdown and Spectre. Wasm was invented to improve execution speed for porting desktop applications to web-based environments; programs are compiled in Wasm and then can easily be run ...