Xen 安全漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen suffers from a security vulnerability th...

CVE-2022-42331

x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work XSA-254, one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variet...

CVE-2022-42331: Undefined Security Weakness

x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work XSA-254, one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variet...

CVE-2022-42331

CVE-2022-42331 describes a Xen hypervisor SPECULATIVE execution vulnerability on the x86 32-bit SYSCALL path. Root cause: an oversight in the original Spectre/Meltdown work (XSA-254) leads to an entrypath performing its speculation-safety actions too late, leaving an unprotected RET instruction i...

Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-127)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-127 advisory. 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 ...

Important: kernel

Issue Overview: 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 after running L2 due to KVM L0 advertising eIBRS support to L1. An attacker at L...

Debian: Security Advisory (DLA-1362-1)

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

Debian: Security Advisory (DLA-1529-1)

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

GSD-2023-1002391 xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.168 by commit...

GSD-2023-1002368 xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.94 by commit...

GSD-2023-1002339 xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.1.12 by commit...

PT-2023-35466 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.10.168 Description: The issue concerns a potential Spectre v1 gadget in the xfrm xlate32 attr function. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel...

PT-2023-35414

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v6.1.12 Description The issue concerns a potential Spectre v1 gadget in the xfrm xlate32 attr function. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel version...

PT-2023-35443 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.94 Description: The issue is related to a potential Spectre v1 gadget in the xfrm xlate32 attr function. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kerne...

The vulnerability of the spectre_v2_select_mitigation() function in the Linux operating system allows a hacker to execute arbitrary code.

The vulnerability of the spectrev2selectmitigation function in the Linux operating system is related to errors in Intel processors when processing the RET instruction after the termination of a virtual machine. Exploiting this vulnerability allows an attacker to execute arbitrary code...

CVE-2022-27672

A flaw was found in HW. When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch, potentially resulting in information disclosure. Mitigation The current mitigations for spectre V4 or spectrev2 should mitiga...

PT-2023-2348

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.2 Description The Linux kernel allows userspace processes to enable mitigations by calling prctl with PR SET SPECULATION CTRL, which disables the speculation feature as well as by using seccomp. However, on VMs of at lea...

K29146534: SSB Variant 4 vulnerability CVE-2018-3639

Security Advisory Description Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel...

K15079139: Linux kernel vulnerability CVE-2019-18660

Security Advisory Description The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry64.S and arch/powerpc/kernel/security.c. CVE-2019-18660...

K58304450: Multiple Intel Processor vulnerabilities: Spectre-NG

Security Advisory Description Eight new vulnerabilities in Intel processors have been mentioned in several sources and are referred to collectively as Spectre-NG. F5 is aware of these vulnerabilities and is investigating as information becomes available. As Intel officially recognizes and announc...