Bitdefender Napoca 缓冲区错误漏洞

Bitdefender Napoca is a lightweight Type-1 bare-machine virtual machine monitor developed by Bitdefender as open source. Bitdefender Napoca has a buffer error vulnerability, which stems from out-of-bounds write operations in the real-mode hook processing routine. This vulnerability may lead to IR...

PT-2026-45767

Name of the Vulnerable Software and Affected Versions Bitdefender Napoca affected versions not specified Description An out-of-bounds write exists in the real-mode hook handler within the napoca/kernel/handler.c file. The handler utilizes a guest-controlled offset derived from SS:SP as an index...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/xen: Do not perform the PV iret hypercall through the hypercall page. Instead of jumping to the Xen hypercall page to execute the iret hypercall, the required sequence is directly coded in the xen-asm.S file. This action is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: x86/xen: Remove the USERGSSYSRET64 paravirt call. This change is committed as upstream commit afd30525a659ac0ae0904f0cb4a2ca75522c3123. USERGSSYSRET64 is used to return from a syscall via SYSRET. However, a Xen PV guest will stil...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000618)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000618 advisory. arch/x86/kernel/entry64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack Segment SS segment register, which allows local...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002177)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002177 advisory. arch/x86/entry/entry64.S in the Linux kernel before 4.1.6 on the x8664 platform mishandles IRET faults in processing NMIs that occurred during userspace execution,...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002155)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002155 advisory. The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001792)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001792 advisory. arch/x86/kernel/entry64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack Segment SS segment register, which allows local...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002140)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002140 advisory. arch/x86/kernel/entry64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack Segment SS segment register, which allows local...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002377)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002377 advisory. The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of...

Siemens SCALANCE and RUGGEDCOM Devices Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2024-53241)

x86/xen: vulnerability due to issues with the PV iret hypercall through the hypercall page, which is fixed by directly coding the sequence in xen-asm.S to avoid problems with speculation mitigations. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot...

kernel: xen: Xen hypercall page unsafe against speculative attacks (Xen Security Advisory 466)

In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer usin...

kernel: xen: Xen hypercall page unsafe against speculative attacks (Xen Security Advisory 466)

In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer usin...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988744)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988744 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/xen: Drop USERGSSYSRET64 paravirt call commit afd30525a659ac0ae0904f0cb4a2ca75522c3123...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990300)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990300 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercal...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989449)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989449 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercal...

EUVD-2009-2783

Malware in sbrugna...

EUVD-2017-17843

Malware in sbrugna...

EUVD-2024-51913

Malicious code in bioql PyPI...

kernel: xen: Xen hypercall page unsafe against speculative attacks (Xen Security Advisory 466)

In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer usin...