XCP_ng_CVE-2026-43284_tester

XCP-ng Dirty Frag 诊断工具 — CVE-2026-43284 一个社区诊断工具，用于判断 XCP-ng dom0 主机是否暴露于 CVE-2026-43284 （“Dirty Frag”），这是 Linux 内核 xfrm-ESP 子系统中的一个本地权限提升漏洞。 TL;DR — 所有当前 XCP-ng 版本（8.1、8.2、8.3）运行标准 4.19 dom0 内核的都在受影响代码范围内。截至 2026 年 5 月，官方尚未发布 XCP-ng 补丁。本工具能明确告知您的主机是否暴露，并提供安全的临时缓解措施。 背景 “Dirty Frag”...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

Guests running on Arm can cause Denial of Service DoS attacks on Dom0 through PV devices. When mapping memory pages of guests on Arm, Dom0 uses an rbtree to keep track of the foreign mappings. The update of this rbtree does not always occur completely with the relevant lock held, resulting in a...

CVE-2026-82636

Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the "system" library function is used to process an error message that may have shell metacharacters. This occurs in...

CVE-2026-82636

Qubes OS (specifically qubes-core-dom0-linux before 4.3.22 ) is vulnerable to OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube. The root cause is the use of the system() library function in core-admin-linux/file-copy-vm/qfile-dom0-agent.c to process an er...

EUVD-2026-68212

Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the "system" library function is used to process an error message that may have shell metacharacters. This occurs in...

CVE-2026-82636

Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the "system" library function is used to process an error message that may have shell metacharacters. This occurs in...

Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel through version 5.10.1, as used with Xen up to version 4.14.x. The Linux kernel’s PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when the thread is stopped. However, the handler may not have enough time to execute if the...

CVE-2026-42486

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-23562

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

ALPINE-CVE-2026-23561

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

ALPINE-CVE-2026-23559

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-23559

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

ALPINE-CVE-2026-23560

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-23560

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

EUVD-2026-42608

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486

Summary: CVE-2026-42486 is documented as a RBAC-related vulnerability in XAPI. Several CVEs describe over-permissive admin roles; specifically, CVE-2026-42486 states that a vm-admin can set VM.platform:hvm_serial, a setting that should be pool-admin restricted, and this can allow arbitrary dom0 f...

CVE-2026-23562

The CVE-2026-23562 entry concerns RBAC mis-configuration in XAPI. The advisory notes that the PCI passthrough configuration was normally restricted to pool-admin, but one API did not enforce this check, allowing a vm-admin to access unintended host hardware. This is described alongside related RB...