UBUNTU-CVE-2018-12207

Improper invalidation for page table updates by a virtual guest operating system for multiple IntelR Processors may allow an authenticated user to potentially enable denial of service of the host system via local access...

DEBIAN-CVE-2019-17344

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates...

UBUNTU-CVE-2019-17344

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates...

Xen Denial of Service Vulnerability (CNVD-2019-34760)

Xen is an open source virtual machine monitor product. Xen has a denial of service vulnerability that can be exploited by an x86 PV client OS attacker to cause a denial of service via a long-running operation used to support the rebootability of PTE updates...

The vulnerability in the DxgkDdiSetRootPageTable function of NVIDIA’s Graphics Driver software for GeForce, Quadro, and Tesla, which allows a hacker to execute arbitrary code, cause system failures, or enhance their privileges.

The vulnerability of the DxgkDdiSetRootPageTable function in NVIDIA GeForce, Quadro, and Tesla graphics driver software is caused by indexing errors. Exploiting this vulnerability can allow attackers to execute arbitrary code, cause system failures, or gain increased privileges...

kernel: ppc: unrelated processes being able to read/write to each other's virtual memory

A flaw was found in the way the Linux kernel's memory subsystem on certain 64-bit PowerPCs with the hash page table MMU handled memory above 512TB. A local, unprivileged user could use this flaw to escalate their privileges on the system...

Finding Evil in Windows 10 Compressed Memory, Part Two: Virtual Store Deep Dive

Introduction This blog post is the second in a three-part series covering our Windows 10 memory forensics research and it coincides with our BlackHat USA 2019 presentation. In Part One of the series, we covered the integration of the research in both Volatily and Rekall memory forensics tools. We...

missing preemption in x86 PV page table unvalidation

ISSUE DESCRIPTION XSA-273 changes required, among other things, making any PTE updates restartable. The changes making PTE updates restartable assumed that L2 pagetables would always be promoted preemptibly; but this turns out not to be the case when using the 'linear pagetable' feature; the resu...

CVE-2018-20168

Google gVisor before 2018-08-22 reuses a pagetable in a different level with the paging-structure cache intact, which allows attackers to cause a denial of service "physical address not valid" panic via a crafted application...

openSUSE: Security Advisory for xen (openSUSE-SU-2018:1487-1)

The remote host is missing an update for the Copyright C 2018 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...

Security update for xen (important)

This update for xen fixes the following issues: Security issues fixed: - CVE-2018-3639: Spectre V4 – Speculative Store Bypass aka "Memory Disambiguation" bsc1092631 This feature can be controlled by the "ssbd=on/off" commandline flag for the XEN hypervisor. - CVE-2018-10982: x86 vHPET interrupt...

SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:1456-1) (Spectre)

This update for xen fixes the following issues: Security issues fixed : - CVE-2018-3639: Spectre V4 Speculative Store Bypass aka 'Memory Disambiguation' bsc1092631 This feature can be controlled by the 'ssbd=on/off' commandline flag for the XEN hypervisor. - CVE-2018-10982: x86 vHPET interrupt...

SUSE-SU-2018:1456-1 Security update for xen

This update for xen fixes the following issues: Security issues fixed: - CVE-2018-3639: Spectre V4 – Speculative Store Bypass aka 'Memory Disambiguation' bsc1092631 This feature can be controlled by the 'ssbd=on/off' commandline flag for the XEN hypervisor. - CVE-2018-10982: x86 vHPET interrupt...

SUSE-SU-2018:0638-1 Security update for xen

This update for xen fixes several issues. This new feature was included: - add script and sysv service to watch for vcpu online/offline events in a HVM domU These security issues were fixed: - CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks via side effects of speculative...

SUSE-SU-2018:0609-1 Security update for xen

This update for xen fixes several issues. These security issues were fixed: - CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks via side effects of speculative execution, aka 'Spectre' and 'Meltdown' attacks bsc1074562, bsc1068032 - CVE-2018-5683: The vgadrawtext function...

Debian DSA-4131-1 : xen - security update

Multiple vulnerabilities have been discovered in the Xen hypervisor : - CVE-2018-7540 Jann Horn discovered that missing checks in page table freeing may result in denial of service. - CVE-2018-7541 Jan Beulich discovered that incorrect error handling in grant table checks may result in...

Xen Denial of Service Vulnerability (CNVD-2018-04652)

Xen is an open source virtual machine monitor developed by the Xen Project. A denial of service vulnerability exists in 4.10.x and earlier versions of Xen. x86 PV guest OS users can exploit this vulnerability to cause a denial of service host OS CPU hang via a non-preemptive L3/L4 page table...

UBUNTU-CVE-2017-15128

A flaw was found in the hugetlbmcopyatomicpte function in mm/hugetlb.c in the Linux kernel before 4.13.12. A lack of size check could cause a denial of service BUG...

MGASA-2018-0078 Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update provided the upstream 4.14.13 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...

Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.4.111 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...