Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.15.98 and fixes atleast the following security issues: A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB...

New Study Finds Most Enterprise Vendors Failing to Mitigate Speculative Execution Attacks

With speculative execution attacks remaining a stubbornly persistent vulnerability ailing modern processors, new research has highlighted an "industry failure" to adopt mitigations released by AMD and Intel, posing a firmware supply chain threat. Dubbed FirmwareBleed by Binarly, the information...

CVE-2021-28689

CVE-2021-28689 concerns the Xen hypervisor. The issue affects 32-bit PV guests running in ring 1 on x86, where 32-bit PV guest kernels were paravirtualised in the original design. The underlying cause is speculative execution side-channel risk in this ring, with Indirect Branch Restricted Specula...

Product update: Virtuozzo 6.0 Update 12 Hotfix 41 (6.0.12-3741)

This update provides hypervisor-related fixes for the Microarchitectural Store Buffer Data MDS vulnerability as well as a stability fix. Vulnerability id: PSBM-94407 The Microarchitectural Store Buffer Data MDS is a series of hardware vulnerabilities which allow speculative execution attacks on...

Product update: Virtuozzo 7.0 Update 10 Hotfix 1 (7.0.10-320)

The Hotfix 1 for for Virtuozzo 7.0.10 mitigates the Microarchitectural Store Buffer Data MDS vulnerability and provides stability and usability bug fixes. Vulnerability id: PSBM-94407 The Microarchitectural Store Buffer Data MDS is a series of hardware vulnerabilities which allow speculative...

Intel Details CPU ‘Virtual Fences’ Fix As Safeguard Against Spectre, Meltdown Flaws

Intel introduced hardware-based protections to its new chips to protect against the Spectre and Meltdown flaws that rocked the silicon industry when the vulnerabilities were made public in early 2018. Spectre and Meltdown, which account for three variants of a side-channel analysis security issue...

In-Spectre-Meltdown - Tool to identify Meltdown & Spectre Vulnerabilities in processors

This tool allows to check speculative execution side-channel attacks that affect many modern processors and operating systems designs. CVE-2017-5754 Meltdown and CVE-2017-5715 Spectre allows unprivileged processes to steal secrets from privileged processes. These attacks present 3 different ways ...