Debian DSA-4698-1 : linux - security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2019-2182 Hanjun Guo and Lei Li reported a race condition in the arm64 virtual memory management code, which could lead to an information...

CVE-2020-12430

An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemudriver.c in libvirt 4.10.0 though 6.x before 6.1.0. A memory leak was found in the virDomainListGetStats libvirt API that is responsible for retrieving domain statistics when managing QEMU guests. This flaw allows unprivileged user...

CVE-2020-11740

A flaw was found in xenoprof in Xen through versions 4.13.x. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests to obtain sensitive information about other guests. The highest threat from this vulnerability is to data confidentiality...

DEBIAN-CVE-2020-11740

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

CVE-2020-11740

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

ALPINE-CVE-2020-11740

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

CVE-2020-11740

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

Information disclosure

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

UBUNTU-CVE-2020-11740

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

CVE-2020-11740

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users without active profiling to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not...

Privilege Escalation

kernel is vulnerable to privilege escalation. The vulnerability exists using PCI passthrough without interrupt remapping support allowed KVM guests to generate MSI interrupts and thus potentially inject traps. A privileged guest user could use this flaw to crash the host or possibly escalate thei...

Denial Of Service (DoS)

kernel is vulnerable to denial of service DoS. The vulnerability exists as the Xen implementation did not prevent applications running in a para-virtualized guest from modifying CR4 TSC. This could cause a local denial of service...

Information Disclosure

xen is vulnerable to information disclosure. The vulnerability exists as a flaw was found in the QEMU block format auto-detection, when running fully-virtualized guests and using Qemu images written on removable media USB storage, 3.5" disks. Privileged users of such fully-virtualized guests DomU...

Information Disclosure

xen is vulnerable to information disclosure. A security vulnerability was discovered in the QEMU block format auto-detection, when running fully-virtualized guests. Such fully-virtualized guests, with a raw formatted disk image, were able to write a header to that disk image describing another...

CVE-2018-15594

It was found that paravirtpatchcall/jump functions in the arch/x86/kernel/paravirt.c in the Linux kernel mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtualized guests...

Millions of Guests Impacted in Marriott Data Breach, Again

For the second time in two years, the Marriott hotel empire has suffered a major data breach. This time, approximately 5.2 million guests have been affected. The attack was carried out via third-party software that Marriott’s hotel properties use to provide guest services, according to an online...

Marriott Suffers Second Breach Exposing Data of 5.2 Million Hotel Guests

International hotel chain Marriott today disclosed a data breach impacting nearly 5.2 million hotel guests, making it the second security incident to hit the company in recent years. "At the end of February 2020, we identified that an unexpected amount of guest information may have been accessed...

Huawei EulerOS: Security Advisory for kvm (EulerOS-SA-2019-1370)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 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...

F5 Networks BIG-IP : vCMP vulnerability (K05765031)

vCMP hypervisors incorrectly expose the plaintext unit key for their vCMP guests on the file system.CVE-2019-6670 Impact An attacker may use this vulnerability to extract the master key of vCMP guests. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were...

ALPINE-CVE-2019-19582

An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service infinite loop because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which...