571 matches found
Zapscape
La trilogía de escapes de KVM ITScape CVE‑2026‑46316 | Januscape CVE‑2026‑53359 | Zapscape CVE‑2026‑64561 ---|---|--- Zapscape: Escape de invitado a host en KVM/x86 Resumen Este documento describe la vulnerabilidad Zapscape CVE-2026-64561 , descubierta e informada por Hyunwoo Kim @v4bel. Es una...
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diapositivas Una colección de diapositivas. 2025 Una historia sobre cómo desafiar a MTE: Rootear Google Pixel con el MTE del kernel habilitado en un solo intento Conferencia: POC 2025 2024 Un bug simple pero no fácil de explotar: Rootear dispositivos Android de una sola vez Conferencia: Cansecwes...
Januscape
Januscape：KVM/x86 环境中的客户机到宿主机逃逸 摘要 本文档描述了由 Hyunwoo Kim @v4bel 发现并报告的 Januscape CVE-2026-53359 漏洞。这是一个 KVM 逃逸漏洞，可使客户机在 KVM/x86 环境中逃逸至宿主机。据公开所知，这是首个可在 Intel 和 AMD 上触发而不仅限于单一架构的客户机到宿主机利用研究。 Januscape 是 KVM/x86 的 shadow MMU 模拟中的一个释放后使用漏洞。仅通过客户机侧操作即可触发该漏洞，破坏宿主机内核的影子页，并可能威胁那些接受不可信客户机并暴露嵌套虚拟化的 KVM/x86...
KVM-Januscape
KVM-XJ 热补丁 dumptool.py 是自动寻找偏移，怎么用就自己看代码 漏洞概述 CVE-2026-53359（Januscape）是 Linux 内核 KVM 影子 MMU 中的释放后使用（UAF）漏洞。 潜伏时间：16 年（2010年8月至2026年7月） 影响范围：所有启用嵌套虚拟化的 Intel/AMD x86 系统 危害等级：高危，VM 内 root 用户可逃逸到母鸡，获取母鸡 root 权限 利用方式：母鸡内核 panic（DoS）或完整虚拟机逃逸（无公开POC） 漏洞原理 kvmmmugetpage 函数在哈希表中查找可复用的影子页表时，仅比较了...
CVE-2026-53359
🚨 CVE-2026-53359 — Januscape Linux KVM 影子分页释放后使用（客户机到宿主机逃逸） Januscape 是一个 Linux 内核 KVM 漏洞，由 x86 影子 MMU 中的释放后使用（UAF） 条件导致。在易受攻击的配置下，恶意客户机可以破坏宿主机内存，导致宿主机崩溃并可能破坏虚拟机隔离。 📌 概述 字段| 值 ---|--- CVE| CVE-2026-53359 别名| Januscape 组件| Linux 内核 KVM（x86 影子 MMU） 漏洞类型| 释放后使用 攻击向量| 客户机虚拟机 影响| 宿主机内核内存破坏 受影响平台| Inte...
CVE-2026-64561
CVE-2026-64561 — Zapscape: KVM/x86 shadow MMU UAF, escape del guest al host root HackSpeak 分发镜像。本仓库为研究员 Hyunwoo Kim@v4bel公开的完整 PoC + 技术文档的分发镜像 ,代码与文档与上游一致。 ⚠️ 上游未附 LICENSE :镜像按分发惯例采用 MIT License,Copyright c 2026 HackSpeak ,源码版权归原代码作者 V4bel / @v4bel。PoC 未经真机验证 ,请先在可销毁环境QEMU TCG测试,勿对未授权目标使用。 Resumen...
Januscape-Hotfix
Januscape 修复方案库 — CVE-2026-53359 English KVM/x86 shadow MMU 虚拟机逃逸漏洞（CVE-2026-53359）的完整修复方案集合 。 从零停机热修复到内核升级，覆盖所有运维场景。 一键诊断 & 修复 GitHub 直连 curl -sL https://raw.githubusercontent.com/Aoripus-LTD/Januscape-Hotfix/main/tools/januscape-fix.sh | sudo bash 中国大陆镜像加速 curl -sL...
CentOS Linux 8.4 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1783414634)
The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1783414634 advisory. - In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Don't advance iterator after restart due to...
SUSE CVE-2026-98164
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
DEBIAN-CVE-2026-98164
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
CVE-2026-98164
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
UBUNTU-CVE-2026-98164
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
CVE-2026-98164 KVM: x86/mmu: Check write tracking in all address spaces
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
EUVD-2026-88753
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
CVE-2026-98164
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
CVE-2026-98164 KVM: x86/mmu: Check write tracking in all address spaces
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
Linux Distros Unpatched Vulnerability : CVE-2026-98164
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shado...
CVE-2026-98164: Undefined Security Weakness
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...
PT-2026-102529
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM x86 MMU where the kvm gfn is write tracked function only checks the supplied memslot. Because page tracking is per-address-space and shadow pages are shared...
CVE-2026-98164
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvmgfniswritetracked checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can...