Understanding the performance impact of Spectre and Meltdown mitigations on Windows Systems

Last week the technology industry and many of our customers learned of new vulnerabilities in the hardware chips that power phones, PCs and servers. We and others in the industry had learned of this vulnerability under nondisclosure agreement several months ago and immediately began developing...

Microsoft January Patch Tuesday Update Fixes 16 Critical Bugs

Thanks to Meltdown and Spectre, January has already been an extremely busy month of patching for Microsoft. Today Microsoft tackled dozens more bugs, part of its regular Patch Tuesday release covering Microsoft Edge, Windows, Office, ASP.NET and the macOS version of Office. Sixteen of Microsoft’s...

A week in security (January 1 – January 7)

New year, new threats, as 2018 gets underway. On our blog, we had dubious searches aplenty for those hunting for Malwarebytes information, and we also covered the huge Meltdown/Spectre bug, affecting hardware going back to 10 years. Other news Coin miners are at it again, with a proof of concept...

USN-3521-1 nvidia-graphics-drivers-384 vulnerability

Jann Horn 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. This update provide...

USN-3521-1: NVIDIA graphics drivers vulnerability

Jann Horn 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. This update provide...

Microsoft Patch Tuesday - January 2018

Today Microsoft has released its monthly set of security advisories for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 56 new vulnerabilities with 16 of them rated critical, 39 of them rated important and 1 of them rated...

Anti-Virus Updates Required Ahead of Microsoft’s Meltdown, Spectre Patches

Microsoft said it is holding off delivering security updates to Windows PCs for Spectre and Meltdown CPU flaws until hosted anti-virus software confirms it does not make unsupported calls into Windows kernel memory. Affected are PCs running certain AV products that bypass Windows built-in Kernel...

Exploit for Observable Discrepancy in Intel Atom_C

Spectre attack Spectre breaks the isolatio...

Meltdown/Spectre and Qualys Cloud Platform

In light of the recently released information about two security vulnerabilities, Qualys has considered the impact on the Qualys Cloud Platform and associated services. Qualys released a detailed advisory for customers of the Qualys Cloud Platform to help customers identify these vulnerabilities...

RHEL 7 : qemu-kvm-rhev (RHSA-2018:0028)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:0028 advisory. KVM Kernel-based Virtual Machine is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the...

RHEL 7 : redhat-virtualization-host (RHSA-2018:0044) (Meltdown) (Spectre)

An update for redhat-virtualization-host is now available for RHEV 3.X Hypervisor and Agents for RHEL-7. 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...

Oracle Linux 7 : qemu-kvm (ELSA-2018-0023)

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2018-0023 advisory. - Fix CVE-2017-5715 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory. Note that Nessus has not tested for...

SUSE SLES11 Security Update : kvm (SUSE-SU-2018:0039-1) (Spectre)

This update for kvm fixes the following issues: A security flaw mitigation has been applied : - CVE-2017-5715: QEMU was updated to allow passing through new MSR and CPUID flags from the host VM to the CPU, to allow enabling/disabling branch prediction features in the Intel CPU. bsc1068032 Also a...

Unbreakable Enterprise kernel security update

4.1.12-112.14.10 - x86/ia32: save and clear registers on syscall. Jamie Iles Orabug: 27355759 CVE-2017-5754 - x86/IBRS: Save current status of MSRIA32SPECCTRL Boris Ostrovsky Orabug: 27355887 - pti: Rename X86FEATUREKAISER to X86FEATUREPTI Pavel Tatashin Orabug: 27352353 CVE-2017-5754 - usb/core:...

RHEL 7 : rhvm-appliance (RHSA-2018:0045) (Meltdown) (Spectre)

An update for rhvm-appliance is now available for RHEV 4.X, RHEV-H, and Agents for Red Hat Enterprise Linux 7. 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...

RHEL 7 : rhevm-setup-plugins (RHSA-2018:0051) (Spectre)

An update for rhevm-setup-plugins is now available for RHEV Engine version 4.1. 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 each vulnerabili...

RHEL 6 / 7 : rhev-hypervisor7 (RHSA-2018:0046) (Meltdown) (Spectre)

An update for rhev-hypervisor7 is now available for RHEV 3.X Hypervisor and Agents for Red Hat Enterprise Linux 6 and RHEV 3.X Hypervisor and Agents for Red Hat Enterprise Linux 7 ELS. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

Meltdown and Spectre vulnerabilities

Challenge Veeam is aware of the side-channel analysis vulnerabilities known as Meltdown CVE-2017-5754 and Spectre CVE-2017-5753, CVE-2017-5715 affecting most of the modern processors. Cause For more information regarding these vulnerabilities please visit security advisories posted by Intel...

RHEL 6 : rhevm-setup-plugins (RHSA-2018:0052) (Spectre)

An update for rhevm-setup-plugins is now available for RHEV Manager version 3.6. 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 each...

EulerOS 2.0 SP1 : kernel (EulerOS-SA-2018-1002)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The recent speculative execution CVEs address three potential attacks across a wide variety of architectures and hardware platforms. - Note: Thi...