CVE-2020-28368

Xen through 4.14.x allows guest OS administrators to obtain sensitive information such as AES keys from outside the guest via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for...

CVE-2020-28368

Xen through 4.14.x allows guest OS administrators to obtain sensitive information such as AES keys from outside the guest via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for...

CVE-2020-27671

An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service data corruption, cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled...

CVE-2020-27672

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages...

Design/Logic Flaw

An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service data corruption, cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled...

CVE-2020-27670

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service data corruption, cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated...

Quick Chat <= 4.14 - Authenticated Stored Cross-Site Scripting

An Authenticated Persistent XSS vulnerability is present in the the plugin options page /wp-admin/options-general.php?page=quick-chat/quick-chat.php, vulnerable fields: «Chat name prefix for guest users», «Advertisement code for your AdSense». The PoC will be displayed once the issue has been...

CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

ALPINE-CVE-2020-25604

An issue was discovered in Xen through 4.14.x. There is a race condition when migrating timers between x86 HVM vCPUs. When migrating timers of x86 HVM guests between its vCPUs, the locking model used allows for a second vCPU of the same guest also operating on the timers to release a lock that it...

CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

Design/Logic Flaw

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

CVE-2020-25604

An issue was discovered in Xen through 4.14.x. There is a race condition when migrating timers between x86 HVM vCPUs. When migrating timers of x86 HVM guests between its vCPUs, the locking model used allows for a second vCPU of the same guest also operating on the timers to release a lock that it...

CVE-2020-25602

CVE-2020-25602 : Xen up to 4.14.x contains a vulnerability where an x86 PV guest accessing the MISC_ENABLE MSR (0x1a0) triggers a host crash due to missing #GP fault handling when reading this Intel-specific MSR. The vulnerability can crash the host Xen instance, enabling a local Denial of Servic...

CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

CVE-2020-25598

CVE-2020-25598 affects Xen 4.14.x and later, where a buggy XENMEM_acquire_resource error path fails to release an RCU reference, leaking it and potentially causing livelock DoS during subsequent admin operations (e.g., CPU offline). The issue is tied to the HVM stubdomain path and is reportably p...

Xen Path Traversal Vulnerability

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. A security vulnerability exists in Xen versi...

Design/Logic Flaw

The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd-norefcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature...

Squid <= 4.14 Privilege Escalation Vulnerability

Squid is prone to a privilege escalation vulnerability. 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 c...