Xen Resource Management Error 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, whic...

CVE-2023-34324

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by remova...

UBUNTU-CVE-2023-34324

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by remova...

PT-2023-6051 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the...

SUSE CVE-2014-6268

The evtchnfifosetpending function in Xen 4.4.x allows local guest users to cause a denial of service host crash via vectors involving an uninitialized FIFO-based event channel control block when 1 binding or 2 moving an event to a different VCPU...

SUSE CVE-2016-7154

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...

SUSE CVE-2020-15566

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a host OS crash because of incorrect error handling in event-channel port allocation. The allocation of an event-channel port may fail for multiple reasons: 1 port is already in use, 2 the memory allocation failed, or...

SUSE CVE-2020-25603

An issue was discovered in Xen through 4.14.x. There are missing memory barriers when accessing/allocating an event channel. Event channels control structures can be accessed lockless as long as the port is considered to be valid. Such a sequence is missing an appropriate memory barrier e.g., smp...

SUSE CVE-2020-27675

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/eventsbase.c allows event-channel removal during the event-handling loop a race condition. This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash vi...

SUSE-SU-2022:0477-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require...

SUSE-SU-2022:0181-1 Security update for the Linux Kernel

The SUSE MicroOS 5.0 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2021-4001: Fixed a race condition when the EBPF map is frozen. bsc1192990 - CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in...

GSD-2021-1002771 xen/blkfront: harden blkfront against event channel storms

xen/blkfront: harden blkfront against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.11 by commit...

GSD-2021-1002770 xen/netfront: harden netfront against event channel storms

xen/netfront: harden netfront against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.11 by commit...

GSD-2021-1002718 xen/console: harden hvc_xen against event channel storms

xen/console: harden hvcxen against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.88 by commit...

GSD-2021-1002717 xen/netfront: harden netfront against event channel storms

xen/netfront: harden netfront against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.88 by commit...

GSD-2021-1002716 xen/blkfront: harden blkfront against event channel storms

xen/blkfront: harden blkfront against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.88 by commit...

GSD-2021-1002686 xen/console: harden hvc_xen against event channel storms

xen/console: harden hvcxen against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.168 by commit...

GSD-2021-1002664 xen/netfront: harden netfront against event channel storms

xen/netfront: harden netfront against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.222 by commit...

GSD-2021-1002663 xen/console: harden hvc_xen against event channel storms

xen/console: harden hvcxen against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.222 by commit...

GSD-2021-1002662 xen/blkfront: harden blkfront against event channel storms

xen/blkfront: harden blkfront against event channel storms This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.222 by commit...