kernel: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS

A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86emulateinsn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU...

kernel: KVM: Unconditionally get a ref to /dev/kvm module when creating a VM

REJECTED CVE In the Linux kernel, the following vulnerability has been resolved: KVM: Unconditionally get a ref to /dev/kvm module when creating a VM...

kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS

A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86emulateinsn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU...

AZL-35163 CVE-2022-3872 affecting package qemu for versions less than 6.2.0-18

An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhcireaddataport and sdhciwritedataport, respectively, if datacount == blocksize. A malicious guest could use this flaw to crash the QEMU process on the host,...

CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist...

ALPINE-CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist...

DEBIAN-CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist...

ALPINE-CVE-2022-42323

Xenstore: Cooperating guests can create arbitrary numbers of nodes This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by...

ALPINE-CVE-2022-42311

Xenstore: guests can let run xenstored out of memory This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service...

UBUNTU-CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist...

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 migration at runtime to ensure uptime and avoid downtime. Xen Xenstore suffers from a security...

CVE-2022-42327

CVE-2022-42327 concerns the Xen hypervisor. On Intel systems that support the “virtualize APIC accesses” feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode, bypassing isolation between guests. The vulnerability is classified with CVSS‑3.1: ...

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 migration at runtime to ensure uptime and avoid downtime. A security vulnerability exists in Xensto...

The vulnerability of the intel_gvt_dma_map_guest_page() function in Linux kernel allows a hacker to trigger a service failure.

The vulnerability of the intelgvtdmamapguestpage function in Linux operating systems is related to improper cleaning of exceptions during processing. Exploiting this vulnerability can allow an attacker to cause a service failure...

A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2) possibly leading to a page fault and kernel panic in the host (L0).

...

VMware Cloud Foundation 代码问题漏洞

VMware Cloud Foundation is an all-in-one hybrid cloud platform from VMware. The platform includes features such as operations automation, infrastructure auto-configuration and integrated lifecycle management. A security vulnerability exists in VMware Cloud Foundation NSX-V that stems from the...

AZL-11352 CVE-2022-3344 affecting package kernel for versions less than 5.15.82.1-1

A flaw was found in the KVM's AMD nested virtualization SVM. A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest L2, possibly leading to a page fault and kernel panic in the host L0...

CVE-2022-3344

A flaw was found in the KVM's AMD nested virtualization SVM. A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest L2, possibly leading to a page fault and kernel panic in the host L0...

CVE-2022-3344

A flaw was found in the KVM's AMD nested virtualization SVM. A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest L2, possibly leading to a page fault and kernel panic in the host L0...