1569 matches found
Fedora: Security Advisory for xen (FEDORA-2022-d80cc73088)
The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH 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-or-later This program is free software; you can...
Fedora: Security Advisory for xen (FEDORA-2022-07438e12df)
The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH 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-or-later This program is free software; you can...
CVE-2022-23824
A flaw was found in hw. The AMD CPUs can be attacked similar to the previously known Spectre Variant 2 CVE-2017-5715. This issue affects AMD CPUs where the OS relies on IBPB to flush the return address predictor. As a result, an unprivileged attacker could use this flaw to cross the syscall and...
CVE-2022-23824
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure...
IBPB and Return Stack Buffer Interactions
Bulletin ID: AMD-SB-1040 Potential Impact: Information Disclosure Severity: Medium Summary AMD is aware of a potential vulnerability affecting AMD CPUs where the OS relies on IBPB to flush the return address predictor. This may allow for CVE-2017-5715 previously known as Spectre Variant 2 attacks...
virt-who bug fix and enhancement update
An update is available for virt-who. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The virt-who service collects information about the connection between the...
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...
CVE-2022-42319
Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only...
CVE-2022-42321
Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations e.g. for deleting a sub-tree of Xenstore nodes. With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored...
Citrix Hypervisor Security Bulletin for CVE-2022-42316, CVE-2022-42317 & CVE-2022-42318
Description of Problem Several security issues have been identified in Citrix Hypervisor 8.2 LTSR CU1, each of which may allow a privileged user in a guest VM to cause part of the management service to become unresponsive, resulting in the inability to create new guests or modify the configuratio...
Fedora: Security Advisory for xen (FEDORA-2022-5b594b82ac)
The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH 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-or-later This program is free software; you can...
Fedora: Security Advisory for qemu (FEDORA-2022-8dcdfe7297)
The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH 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-or-later This program is free software; you can...
virt-who bug fix and enhancement update
An update is available for virt-who. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The virt-who service collects information about the connection between the...
CVE-2022-33748
lock order inversion in transitive grant copy handling As part of XSA-226 a missing cleanup call was inserted on an error handling path. While doing so, locking requirements were not paid attention to. As a result two cooperating guests granting each other transitive grants can cause locks to be...
New Malware Families Found Targeting VMware ESXi Hypervisors
Threat actors have been found deploying never-before-seen post-compromise implants in VMware's virtualization software to seize control of infected systems and evade detection. Google's Mandiant threat intelligence division referred to it as a "novel malware ecosystem" that impacts VMware ESXi,...
CVE-2022-36067
A flaw was found in the vm2 sandbox when running untrusted code, as the sandbox setup does not manage proper exception handling. This flaw allows an attacker to bypass the sandbox protections and gain remote code execution on the hypervisor host or the host which is running the sandbox. Mitigatio...
Ubuntu: Security Advisory (USN-5062-1)
The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...
Ubuntu: Security Advisory (USN-4163-2)
The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...
Ubuntu: Security Advisory (USN-4303-2)
The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...
(0Day) (Pwn2Own) Oracle VirtualBox SLIRP sosendoob Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. 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...