CLSA-2021-1632262269 Fix of CVE: CVE-2021-34693, CVE-2021-20292, CVE-2021-28972, CVE-2021-20265, CVE-2021-32399, CVE-2014-4508, CVE-2021-3612, CVE-2021-3178, CVE-2021-37159, CVE-2021-38205, CVE-2021-3573, CVE-2021-38160

ELSCVE-666: CVE-2021-34693: can: bcm: fix infoleak in struct bcmmsghead - ELSCVE-705: CVE-2021-38160: virtioconsole: Assure used length from device is limited - ELSCVE-769: CVE-2014-4508: x8632, entry: Do syscall exit work on badsys CVE-2014-4508 - ELSCVE-844: CVE-2021-3573: Bluetooth: use...

Ubuntu: Security Advisory (USN-5073-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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-5073-2: Linux kernel (GCP) vulnerabilities

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory...

USN-5073-2 linux-gcp, linux-gcp-4.15 vulnerabilities

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory...

(0Day) Parallels Desktop virtio-net Memory Corruption Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the...

Ubuntu: Security Advisory (USN-5073-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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-5073-1: Linux kernel vulnerabilities

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory...

USN-5073-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon vulnerabilities

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory...

CVE-2021-3748

A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to numbuffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting i...

UBUNTU-CVE-2021-3748

A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to numbuffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting i...

CVE-2021-29631

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

CVE-2021-29631

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

Memory corruption

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

CVE-2021-29631

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

CVE-2021-29631

CVE-2021-29631 affects FreeBSD bhyve, specifically certain VirtIO-based device models. The issue is a missing or inadequate error handling when fetching I/O descriptors, which can allow a malicious guest to cause the device model to operate on uninitialized I/O vectors, leading to memory corrupti...

CVE-2021-29631

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

CVE-2021-3748

A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to numbuffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting i...

CVE-2021-29631: Use of Uninitialized Resource

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

OESA-2021-1324 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of...

FreeBSD : FreeBSD -- Missing error handling in bhyve(8) device models (a6d5d4c1-0564-11ec-b69d-4062311215d5)

Certain VirtIO-based device models failed to handle errors when fetching I/O descriptors. Such errors could be triggered by a malicious guest. As a result, the device model code could be tricked into operating on uninitialized I/O vectors, leading to memory corruption. Impact : A malicious guest...