CPU OP Cache Corruption

CVE Details Refer to Glossary for explanation of terms CVE| CVE Description| CVSS Score ---|---|--- CVE-2025-54518| Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level...

Speculative Leaks Security Notice

Bulletin ID: AMD-SB-7007 Potential Impact: Loss of Confidentiality Severity: Low Summary External researchers have reported that on some AMD processors a division-by-zero can potentially return speculative data. CVE Details Refer to Glossary for explanation of terms CVE| Severity| CVE Description...

[SECURITY] [DLA 3511-1] amd64-microcode security update

Debian LTS Advisory DLA-3511-1 [email protected] https://www.debian.org/lts/security/ Jochen Sprickerhof July 31, 2023 https://wiki.debian.org/LTS Package : amd64-microcode Version : 3.20230719.1+deb10u1 CVE ID : CVE-2023-20593 Debian Bug : 1041863 Tavis Ormandy discovered that under...

K000135632: AMD Ryzen vulnerability CVE-2023-20593

Security Advisory Description An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information. CVE-2023-20593 also known as Zen Bleed Vulnerability Impact There is no impact; F5 products are not affected by this...

Mageia: Security Advisory (MGASA-2023-0242)

The remote host is missing an update for the 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...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.15.122 and fixes atleast the following security issues: Under specific microarchitectural circumstances, a register in "Zen 2" CPUs may not be written to 0 correctly. This may cause data from another process and/or thread to be stored in the YMM...

Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 : AMD Microcode vulnerability (USN-6244-1)

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 host has a package installed that is affected by a vulnerability as referenced in the USN-6244-1 advisory. Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector...

AMD Cross-Process Information Leak - Lenovo Support US

No description provided...

CVE-2023-20593

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information...

CVE-2023-20593

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information...

CVE-2023-20593

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information...

CVE-2023-20593

CVE-2023-20593 is described as a vulnerability in AMD/Zen 2 microarchitectural behavior that could allow an attacker to access sensitive information under specific conditions. In the provided documents, the description is broad and does not list concrete affected products, versions, root cause de...

CVE-2023-20593

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information...

CVE-2023-20593

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information...

Information disclosure

Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading SMT. By measuring the contention level on scheduler queues an attacker may potentially leak sensitive...

CVE-2021-46778

CVE-2021-46778 describes an information-disclosure side-channel vulnerability in AMD CPUs with SMT (Zen 1–Zen 4). The root cause is execution unit scheduler contention on SMT-enabled cores, allowing an attacker to infer data by measuring scheduler-queue contention. Public documents identify affec...

Execution Unit Scheduler Contention Side-Channel Vulnerability on AMD Processors

Bulletin ID: AMD-SB-1039 Potential Impact: Information Disclosure Severity: Medium Summary Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2”, “Zen 3” and “Zen 4” that use simultaneous multithreading SMT. By...