x86: buffer overrun with shadow paging + tracing

ISSUE DESCRIPTION Shadow mode tracing code uses a set of per-CPU variables to avoid cumbersome parameter passing. Some of these variables are written to with guest controlled data, of guest controllable size. That size can be larger than the variable, and bounding of the writes was missing. IMPAC...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002432)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002432 advisory. Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a...

Astra Linux - уязвимость в linux-6.12

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

CVE-2023-53647

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Don't dereference ACPI root object handle Since the commit referenced in the Fixes: tag below the VMBus client driver is walking the ACPI namespace up from the VMBus ACPI device to the ACPI namespace root obje...

Linux Distros Unpatched Vulnerability : CVE-2019-19577

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in Xen through 4.12.x allowing x86 AMD HVM guest OS users to cause a denial of service or possibly gain privileges by triggering...

PT-2025-43034

Name of the Vulnerable Software and Affected Versions xen affected versions not specified Description Certain hypercalls within xen can be specified in a manner that presents a security concern. The description does not provide details about the nature of the issue or any specific technical detai...

PT-2023-24981 · F5 · F5 Big-Ip

Name of the Vulnerable Software and Affected Versions: F5 BIG-IP versions affected versions not specified Description: The issue concerns F5 BIG-IP platforms with Cavium Nitrox FIPS HSM cards, which generate a deterministic password for the Crypto User account. This predictable password allows an...

SUSE CVE-2019-19338

A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where, the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort TAA error occurs. When a guest is running on a host CPU affected by the TAA flaw TAANO=0, but is no...

SUSE CVE-2022-23035

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time...

kernel: xen: hypercalls exposed to privilege rings 1 and 2 of HVM guests

Xen 3.0.3 through 4.1.x possibly 4.1.6.1, 4.2.x possibly 4.2.3, and 4.3.x possibly 4.3.1 does not properly prevent access to hypercalls, which allows local guest users to gain privileges via a crafted application running in ring 1 or 2...

CVE-2013-0152

Memory leak in Xen 4.2 and unstable allows local HVM guests to cause a denial of service host memory consumption by performing nested virtualization in a way that triggers errors that are not properly handled...