Rogue guests can cause DoS of Dom0 via high frequency events

ISSUE DESCRIPTION The handling of Xen events in the Linux kernel runs with interrupts disabled in a loop until no further event is pending. Whenever an event has been accepted by the kernel, another event can come in via the same event channel. This can result in the event handling loop running f...

CVE-2018-16882

A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested=1 virtualization is enabled. In nestedgetvmcs12pages, in case of an error while processing posted interrupt address, it unmaps the 'pidescpage' without resetting 'pidesc' descript...

CentOS: Security Advisory for kernel (CESA-2020:0790)

The remote host is missing an update for the Copyright C 2020 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...

Linux kernel information disclosure vulnerability (CNVD-2020-16637)

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the fs/proc/base.c file in Linux kernel 3.1 and earlier versions. A local attacker can exploit this vulnerability to obtain sensitiv...

Updated xen packages fix security vulnerability

- Updated from 4.12.0 to 4.12.1 - Device quarantine for alternate pci assignment methods XSA-306 - x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 - TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 - VCPUOPinitialise DoS XSA-296, CVE-2019-18420...

CVE-2011-4915

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

DEBIAN-CVE-2011-4915

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

Information disclosure

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

CVE-2011-4915

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

UBUNTU-CVE-2011-4915

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

CVE-2011-4915

CVE-2011-4915 affects the Linux kernel, specifically the file fs/proc/base.c, up to version 3.1. It enables a local attacker to disclose sensitive keystroke information by accessing /proc/interrupts, constituting an information-disclosure vulnerability. Root cause: improper exposure of keystroke-...

CVE-2011-4915

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

CVE-2011-4915

fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts...

Fedora 29 : xen (2019-865bb16900)

VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298, CVE-2019-18425 Issues with restartable PV type change operations XSA-299, CVE-2019-18421 1767726 add-to-physmap can be abused to DoS Arm hosts XSA-301, CVE-2019-18423 passed through P...

openSUSE Security Update : xen (openSUSE-2019-2508)

This update for xen fixes the following issues : - CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a race condition in the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional. bsc1155945 -...

CVE-2019-18422

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service or gain privileges by leveraging the erroneous enabling of interrupts. Interrupts are unconditionally unmasked in exception handlers. When an exception occurs on an ARM system which is handled...

CVE-2019-1125

A Spectre gadget was found in the Linux kernel's implementation of system interrupts. An attacker with local access could use this information to reveal private data through a Spectre like side channel. Mitigation For mitigation related information, please refer to the Red Hat Knowledgebase artic...

ALPINE-CVE-2019-18422

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service or gain privileges by leveraging the erroneous enabling of interrupts. Interrupts are unconditionally unmasked in exception handlers. When an exception occurs on an ARM system which is handled...

CVE-2019-18422

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service or gain privileges by leveraging the erroneous enabling of interrupts. Interrupts are unconditionally unmasked in exception handlers. When an exception occurs on an ARM system which is handled...

CVE-2019-18422

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service or gain privileges by leveraging the erroneous enabling of interrupts. Interrupts are unconditionally unmasked in exception handlers. When an exception occurs on an ARM system which is handled...