Advisory ROSA-SA-2023-2163

Software: unbound 1.16.2 OS: ROSA Virtualization 2.1 packageevrstring: unbound-1.16.2-2.rv3.src.rpm CVE-ID: CVE-2019-25032 BDU-ID: None CVE-Crit: CRITICAL CVE-DESC: Unbound before 1.9.5 allows integer overflow in the regional allocator via regionalalloc. CVE-STATUS: Fixed CVE-REV: Run the yum...

EulerOS Virtualization 2.10.0 : python-setuptools (EulerOS-SA-2023-1940)

According to the versions of the python-setuptools packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Python Packaging Authority PyPA setuptools before 65.5.1 allows remote attackers to cause a denial of service via HTML...

EulerOS Virtualization 2.10.0 : edk2 (EulerOS-SA-2023-1945)

According to the versions of the edk2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. CVE-2021-38578 Note that Tenable...

EulerOS Virtualization 2.10.0 : libX11 (EulerOS-SA-2023-1923)

According to the versions of the libX11 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further...

EulerOS Virtualization 2.10.0 : qemu (EulerOS-SA-2023-1944)

According to the versions of the qemu package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - 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 i...

EulerOS Virtualization 2.10.0 : curl (EulerOS-SA-2023-1931)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - When doing HTTPS transfers, libcurl might erroneously use the read callback CURLOPTREADFUNCTION to ask for data to send, even when...

The vulnerability of the App-V software service for virtualizing and delivering Citrix Virtual Apps and Desktops (formerly XenApp and XenDesktop), operating systems Windows, allows a malicious individual to escalate their privileges and execute arbitrary commands.

The vulnerability of the App-V software service for virtualizing and delivering Citrix Virtual Apps and Desktops formerly XenApp and XenDesktop on Windows operating systems is related to the lack of measures taken to neutralize special elements used in the operating system’s command set. Exploiti...

CVE-2022-23818

Insufficient input validation on the model specific register: VMHSAVEPA may potentially lead to loss of SEV-SNP guest memory integrity...

CVE-2021-26406

Insufficient validation in parsing Owner's Certificate Authority OCA certificates in SEV AMD Secure Encrypted Virtualization and SEV-ES user application can lead to a host crash potentially resulting in denial of service...

Moderate: Red Hat Security Advisory: qemu-kvm security, bug fix, and enhancement update

An update for qemu-kvm is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

kernel: KVM: x86/xen: Initialize Xen timer only once

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Initialize Xen timer only once Add a check for existing xen timers before initializing a new one. Currently kvmxeninittimer is called on every KVMXENVCPUATTRTYPETIMER, which is causing the following ODEBUG crash whe...

kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks

A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...

kernel: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be passed that is less than or equal to SEVFWBLOBMAXSIZE, but larger than the data that PSP firmware return...

kernel: Linux kernel KVM: Denial of Service via incorrect NX bit handling in NPT

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. When KVM uses Nested Page Tables NPT with NX huge page mitigation enabled, it incorrectly handles the No-Execute NX bit in Shadow Page Table Entries SPTE. This improper handling can be triggered by a local attacker...

kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks

A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...

kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva

A flaw was found in KVM. With shadow paging enabled if INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference. This flaw allows a guest user to cause a kernel oops condition on the host, resulting in a denial of service...

AMD Secure Encrypted Virtualization 安全漏洞

AMD Secure Encrypted Virtualization is a software application from UltraMicroelectronics AMD. Hardware-accelerated memory encryption to protect data in use. A security vulnerability exists in AMD Secure Encrypted Virtualization. An attacker could exploit this vulnerability to cause a denial of...

ALSA-2023:2162 Moderate: qemu-kvm security, bug fix, and enhancement update

Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. The following packages have been upgraded to a later upstream version: qemu-kvm 7.2.0...

PT-2023-12100 · Amd · Amd Secure Encrypted Virtualization +1

Name of the Vulnerable Software and Affected Versions: AMD Secure Encrypted Virtualization SEV and SEV-ES affected versions not specified Description: The issue is related to insufficient validation in parsing Owner's Certificate Authority OCA certificates, which can lead to a host crash and...

Huawei EulerOS: Security Advisory for wayland (EulerOS-SA-2023-1710)

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...