1407 matches found
The vulnerability of the Grant Table, which is used by Xen hypervisors, allows a perpetrator to disclose protected information or cause service failures.
The vulnerability of the Grant Table of the Xen hypervisor is related to synchronization errors when using a common resource. Exploiting this vulnerability can allow an attacker to disclose protected information or cause service failures...
The vulnerability of the Grant Table, which is used by Xen hypervisors, allows a perpetrator to disclose protected information or cause service failures.
The vulnerability of the Grant Table of the Xen hypervisor is related to synchronization errors when using a common resource. Exploiting this vulnerability can allow an attacker to disclose protected information or cause service failures...
The vulnerability of the FIFO event processing mechanism in Xen hypervisors allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.
The vulnerability of the FIFO event processing mechanism in Xen hypervisors is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...
Astra Linux – Vulnerability in Xen
Inappropriate x86 IOMMU timeout detection/handling: IOMMU processes commands that are issued in parallel with the operation of the CPUs that issue those commands. In the current implementation in Xen, asynchronous notifications of the completion of such commands are not used. Instead, the issuing...
Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in the .notes section. When building with CONFIGXENPV=y, .text symbols are emitted into the .notes section so that Xen can find the “startupxen” entry point. This information is used before booting...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build ID returned by HYPERVISORxenversionXENVERbuildid is neither terminated with NUL nor a string. The first cause a buffer overflow because the sprintf function in buildidshow...
Xen: Stale TLB Entry Ahead of Page Scrubbing (XSA-511)
x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...
CVE-2026-79602
A flaw was found in Xen. A malicious guest operating system, when configured with a PCI device that has a Base Address Register BAR mapped to the I/O port space, can trigger an internal error within the Xen hypervisor. This vulnerability could lead to a denial of service, causing the host system ...
CVE-2026-79603 Unconditionally do TLB flushing ahead of page scrubbing
x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...
CVE-2026-62437
When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest...
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A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...
No title provided
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...
No title provided
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...
Important: Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Syst...
No title provided
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...
No title provided
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...
ALSA-2026:53329 Important: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: cxl/port: Fix use after free of parentport in cxldetachep CVE-2026-31530 kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2025-54518 kernel:...
[SECURITY] [DSA 6424-1] xen security update
------------------------------------------------------------------------- Debian Security Advisory DSA-6424-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 09, 2026 https://www.debian.org/security/faq -...
No title provided
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...
No title provided
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result ...