12436 matches found
CVE-2026-23558
A flaw was found in Xen. A race condition exists when a Hardware Virtual Machine HVM or Para-Virtualization Hybrid PVH guest changes its grant table version from v2 to v1 while simultaneously mapping status pages. This can lead to some status pages being freed while still mapped in the guest's...
Security update for xen
This update for xen fixes the following issues CVE-2025-54505: Floating Point Divider State Sampling on AMD CPUs AMD-SN-7053 bsc1262428. CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption bsc1264066. CVE-2026-23557: Xenstored DoS via XSRESETWATCHES command bsc1262178. CVE-2026-23558: grant tabl...
SUSE CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
A flaw was found in the Linux kernel's xen-netback component. A malicious or buggy Xen guest can exploit this by writing a zero value to the 'multi-queue-num-queues' xenbus key. This improper input validation can trigger a warning in the kernel's memory allocation, leading to a guest-to-host Deni...
[SECURITY] Fedora 44 Update: xen-4.21.1-3.fc44
This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...
[SECURITY] Fedora 43 Update: xen-4.20.3-3.fc43
This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...
Fedora 43 : xen (2026-7b2b7837b6)
The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-7b2b7837b6 advisory. x86: CPU Opcode Cache corruption XSA-490,CVE-2025-54518 Tenable has extracted the preceding description block directly from the Fedora security advisory. Not...
Fedora 44 : xen (2026-8b2957222f)
The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8b2957222f advisory. x86: CPU Opcode Cache corruption XSA-490,CVE-2025-54518 Tenable has extracted the preceding description block directly from the Fedora security advisory. Not...
EUVD-2026-32356
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
UBUNTU-CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890
The CVE-2026-45890 issue affects the Linux kernel Xen-netback. A Xen guest can set multi-queue-num-queues to 0; the connect() validation checks only the upper bound (requested_num_queues > xenvif_max_queues) and does not reject zero. This can reach vzalloc(array_size(0, sizeof(struct xenvif_qu...
CVE-2026-45890
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
CVE-2026-45890 xen-netback: reject zero-queue configuration from guest
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...
Linux Distros Unpatched Vulnerability : CVE-2026-45890
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write 0 to the xenbus key multi-queue-num-queues. The connect functio...
Linux kernel 安全漏洞
The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the xen-netback backend not verifying that the queue number is zero, potentially leading to a...
PT-2026-43757
In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requested num...
CVE-2026-45890
xen-netback: reject zero-queue configuration from guest...
Ubuntu Pro FIPS-updates 24.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-8296-1)
The remote Ubuntu Pro FIPS-updates 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8296-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...
Astra Linux - уязвимость в xen
Potential speculative code storage bypasses exist in all supported CPU products. Combined with software vulnerabilities related to speculative execution of overwritten instructions, this could lead to incorrect speculation and potentially cause data leakage...