Moderate: Red Hat Bug Fix Advisory: microcode_ctl bug fix and enhancement update

An update for microcodectl is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support. The microcodectl packages provide microcode updates for Intel and AMD processors. Bug Fixes and Enhancements: rhel-7.2.z HPEMC 7.9 REGRESSION Microcodectl microcodectl BZ1907916...

microcode_ctl bug fix and enhancement update

The microcodectl packages provide microcode updates for Intel and AMD processors. Bug Fixes and Enhancements: rhel-8.3.0.z HPEMC 8.3.z REGRESSION Regression in intel microcode as of 20201110 BZ1907898...

glibc bug fix and enhancement update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Bug Fixes and Enhancement...

ALBA-2021:0556 glibc bug fix and enhancement update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Bug Fixes and Enhancement...

Intel, ARM, IBM, AMD Processors Vulnerable to New Side-Channel Attacks

It turns out that the root cause behind several previously disclosed speculative execution attacks against modern processors, such as Meltdown and Foreshadow, was misattributed to 'prefetching effect,' resulting in hardware vendors releasing incomplete mitigations and countermeasures. Sharing its...

New Noise-Resilient Attack On Intel and AMD CPUs Makes Flush-based Attacks Effective

Modern Intel and AMD processors are susceptible to a new form of side-channel attack that makes flush-based cache attacks resilient to system noise, newly published research shared with The Hacker News has revealed. The findings are from a paper "DABANGG: Time for Fearless Flush based Cache...

9 Years of AMD Processors Vulnerable to 2 New Side-Channel Attacks

AMD processors from as early as 2011 to 2019 carry previously undisclosed vulnerabilities that open them to two new different side-channel attacks, according to a freshly published research. Known as "Take A Way," the new potential attack vectors leverage the L1 data L1D cache way predictor in...

9 Years of AMD Processors Vulnerable to 2 New Side-Channel Attacks

AMD processors from as early as 2011 to 2019 carry previously undisclosed vulnerabilities that open them to two new different side-channel attacks, according to a freshly published research. Known as "Take A Way," the new potential attack vectors leverage the L1 data L1D cache way predictor in...

MGASA-2020-0089 Updated kernel-linus packages fix security vulnerabilities

This update provides upstream 5.4.20, adding support for new hardware and features, and resolves at least the following security issues: In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This...

Updated kernel-linus packages fix security vulnerabilities

This update provides upstream 5.4.20, adding support for new hardware and features, and resolves at least the following security issues: In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This...

AZL-6519 CVE-2019-3016 affecting package kernel for versions less than 5.10.78.1-1

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD...

AZL-34852 CVE-2019-3016 affecting package kernel for versions less than 6.6.29.1-4

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD...

CVE-2019-3016

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD...

DEBIAN-CVE-2019-3016

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5526)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5526 advisory. - x86/KVM: Clean up host's steal time structure Boris Ostrovsky Orabug: 30489861 CVE-2019-3016 CVE-2019-3016 - x86/KVM: Make sure KVMVCPUFLUSHTLB flag ...

CVE-2019-3016

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD...

UBUNTU-CVE-2019-3016

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD...

ALPINE-CVE-2019-19577

An issue was discovered in Xen through 4.12.x allowing x86 AMD HVM guest OS users to cause a denial of service or possibly gain privileges by triggering data-structure access during pagetable-height updates. When running on AMD systems with an IOMMU, Xen attempted to dynamically adapt the number ...

SWAPGS Attack — New Speculative Execution Flaw Affects All Modern Intel CPUs

A new variant of the Spectre Variant 1 side-channel vulnerability has been discovered that affects all modern Intel CPUs, and probably some AMD processors as well, which leverage speculative execution for high performance, Microsoft and Red Hat warned. Identified as CVE-2019-1125, the vulnerabili...

Intel x86-64 and AMD Microprocessors Information Disclosure Vulnerability

Microsoft Windows is a set of operating systems for use on personal devices from the American company Microsoft. An information disclosure vulnerability exists in Intel x86-64 and AMD Microprocessors. An attacker could exploit the vulnerability to read read privileged data...