CVE-2023-31347

Due to a code bug in SecureTSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity...

Information disclosure

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests...

CVE-2023-31346

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests...

CVE-2023-31347

CVE-2023-31347 stems from a code bug in Secure_TSC used by SEV firmware, potentially allowing a high-privilege attacker to cause a guest to observe an incorrect TSC, risking guest integrity. Affected: AMD SEV/SEV-SNP firmware; impact: loss of guest integrity with no disclosed remote code executio...

CVE-2023-31347

Due to a code bug in SecureTSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity...

CVE-2023-31346

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests...

CVE-2023-31346

CVE-2023-31346 is confirmed by connected advisories to affect linux-firmware related components and SEV firmware handling. The issue describes memory initialization failure in SEV firmware that may allow a privileged attacker to access stale data from other guests, impacting guest memory integrit...

CVE-2023-31346

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests...

SEV-SNP Firmware Vulnerabilities

Bulletin ID: AMD-SB-3007 Potential Impact: Data leakage CVE-2023-31346 and loss of integrity CVE-2023-31347 Severity: Refer to the CVE Details section Summary This bulletin addresses two SEV firmware vulnerabilities reported by an external researcher. Refer to the CVE Details section below. CVE...

Ubuntu: Security Advisory (USN-6628-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

USN-6626-1 linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities

Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2023-32250, CVE-2023-32252, CVE-2023-32257...

USN-6624-1: Linux kernel vulnerabilities

Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service paravirtualized device unavailability. CVE-2023-34324 Zheng Wang discovered...

kernel security update

5.14.0-362.18.0.13.OL9 - nfp: fix use-after-free in areacacheget Jialiang Wang CVE-2022-3545 - drivers: net: slip: fix NPD bug in sltxtimeout Duoming Zhou CVE-2022-41858 - can: afcan: fix NULL pointer dereference in canrcvfilter Oliver Hartkopp CVE-2023-2166 - RDMA/core: Fix resolvepreparesrc...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. 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...

CVE-2023-20573

A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information...

Information disclosure

A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information...

CVE-2023-20573

CVE-2023-20573 describes a defect in AMD SEV-SNP on 3rd/4th Gen EPYC processors where a privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests, potentially causing guests to miss expected debug information. The issue is local to privileged attackers and affects the deliver...

CVE-2023-20573 Debug Exception Delivery in Secure Nested Paging

A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information...

PT-2024-1555 · Amd · Amd Sev-Snp

Name of the Vulnerable Software and Affected Versions: AMD SEV-SNP affected versions not specified Description: A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests, potentially resulting in guests not receiving expected debug information. The issue is related to the...

Debug Exception Delivery in Secure Nested Paging

Bulletin ID: AMD-SB-3006 Potential Impact: Suppression of guest debug exceptions Severity: Low Summary A researcher has reported that a host can potentially suppress delivery of debug exceptions to SEV-SNP guests that have the restricted injection feature enabled. For example, a software-based...