CVE-2023-34328

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. AMD CPUs since 2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of...

CVE-2023-34327 x86/AMD: Debug Mask handling

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. AMD CPUs since 2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of...

CVE-2023-34327

CVE-2023-34327 and CVE-2023-34328 describe Xen handling flaws in AMD x86 debugging extensions where an HVM vCPU can run under a previous vCPU’s debug mask state or a PV vCPU can place breakpoints on a live GDT. This can cause denial of service and CPU lockups. Root cause: errors in Xen’s guest-st...

CentOS 7 : kernel (RHSA-2023:4819)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4819 advisory. - An issue in Zen 2 CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information...

Oracle Linux 9 : kernel (ELSA-2023-7749)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-7749 advisory. - x86/retpoline: Document some thunk handling aspects Borislav Petkov CVE-2023-20569 - objtool: Fix return thunk patching in retpolines Josh Poimboeuf...

CentOS 7 : linux-firmware (RHSA-2023:7513)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7513 advisory. - A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative...

Huawei EulerOS: Security Advisory for linux-firmware (EulerOS-SA-2023-3437)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2023 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...

RHEL 7 : linux-firmware (RHSA-2023:7782)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7782 advisory. The linux-firmware packages contain all of the firmware files that are required by various devices to operate. Security Fixes: hw amd: Retur...

Microsoft patches 34 vulnerabilities, including one zero-day

December’s Patch Tuesday is a relatively quiet one on the Microsoft front. Redmond has patched 34 vulnerabilities with only four rated as critical. One vulnerability, a previously disclosed unpatched vulnerability in AMD central processing units CPUs, was shifted by AMD to software developers. Th...

CVE-2020-12965

A flaw was found in AMD CPUs. When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits, potentially resulting in data leakage...

CVE-2022-46141

A vulnerability has been identified in SIMATIC STEP 7 TIA Portal All versions V19. An information disclosure vulnerability could allow a local attacker to gain access to the access level password of the SIMATIC S7-1200 and S7-1500 CPUs, when entered by a legitimate user in the hardware...

CVE-2022-46141

A vulnerability has been identified in SIMATIC STEP 7 TIA Portal All versions V19. An information disclosure vulnerability could allow a local attacker to gain access to the access level password of the SIMATIC S7-1200 and S7-1500 CPUs, when entered by a legitimate user in the hardware...

Siemens SIMATIC STEP 7 (TIA Portal)

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories CERT Services | Services |...

SLAM Attack: New Spectre-based Vulnerability Impacts Intel, AMD, and Arm CPUs

Researchers from the Vrije Universiteit Amsterdam have disclosed a new side-channel attack called SLAM that could be exploited to leak sensitive information from kernel memory on current and upcoming CPUs from Intel, AMD, and Arm. The attack is an end-to-end exploit for Spectre based on a new...

Ubuntu 16.04 ESM : Linux kernel vulnerabilities (USN-6532-1)

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6532-1 advisory. Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker...

Memory Integrity Loss

amd64-microcode AMD CPU microcode patches is vulnerable to Memory Integrity Loss. The vulnerability is caused due to Improper or Unexpected behavior of the INVD instruction in some AMD CPUs. It can allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU...

RHEL 8 : kernel-rt (RHSA-2023:7551)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7551 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

RHEL 7 : linux-firmware (RHSA-2023:7513)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7513 advisory. The linux-firmware packages contain all of the firmware files that are required by various devices to operate. Security Fixes: hw amd: Retur...

hw: amd: Cross-Process Information Leak

A flaw was found in hw, in “Zen 2” CPUs. This issue may allow an attacker to access sensitive information under specific microarchitectural circumstances...

RHEL 9 : kernel-rt (RHSA-2023:7389)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7389 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...