CVE-2017-16995

漏洞描述 Ubuntu是一个以桌面应用为主的开源GNU/Linux操作系统，基于Debian GNU/Linux 。近期有白帽子爆出 ubuntu 的最新版本（Ubuntu 16.04）存在本地提权漏洞，漏洞编号为CVE-2017-16995。该漏洞存在于调用eBPF bpf2的Linux内核系统中，当用户提供恶意BPF程序使eBPF验证器模块产生计算错误，导致任意内存读写问题， 低权限用户可使用此漏洞获得管理权限。 该漏洞在老版本中已经得到修复，然而最新版本中仍然可被利用，官方暂未发布相关补丁，漏洞处于0day状态。 影响版本 Linux Kernel Version 4.14-4.4...

CVE-2022-23222

CVE-2022-23222 Haga clic aquí si solo desea compilar y ejecutar el asunto. Lo que sigue es más o menos una traducción del artículo chino, disponible aquí. Usaremos el código del kernel principal para la versión 5.13.0 como referencia. Hay un desajuste entre los tipos de puntero disponibles y la...

CVE-2017-16995

Linux Kernel Version 4.14 - 4.4 Ubuntu && Debian 描述 该漏洞存在于Linux内核带有的eBPF bpf2系统调用中，当用户提供恶意BPF程序使eBPF验证器模块产生计算错误，导致任意内存读写问题。 非特权用户可以使用此漏洞获得权限提升。漏洞由Google project zero发现。 漏洞编号 CVE-2017-16995 威胁等级 高危 演示 bearcat@ubuntu:/opt$ lsbrelease -a No LSB modules are available. Distributor ID: Ubuntu...

cve-2021-3490-ebpf-analysis

cve-2021-3490-análisis-ebpf Implementación de investigación que demuestra la interacción con el subsistema eBPF de Linux relacionado con CVE-2021-3490. Incluye creación de mapas BPF, envoltorios de syscalls, configuración de espacios de nombres y análisis del verificador. Solo con fines educativo...

CVE-2017-16995

ubuntu 最新版本（Ubuntu 16.04）存在高危的本地提权漏洞，漏洞编号为CVE-2017-16995。该漏洞存在于调用eBPF bpf2的Linux内核系统中，当用户提供恶意BPF程序使eBPF验证器模块产生计算错误，导致任意内存读写问题，低权限用户可使用此漏洞获得管理权 限。 版本范围：Ubuntu 16.04.116.04.4 均存在此漏洞 使用方法： gcc -o upstream44 upstream44.c即可提权。...

CVE-2026-7878-eBPF-Verifier-Type-Confusion-Kernel-Memory-Read-Write

6. CVE-2026-7878 – Confusión de Tipos del Verificador eBPF → Lectura/Escritura de Memoria del Kernel Resumen Un sutil desbordamiento de enteros en el seguimiento de límites del verificador eBPF permite a un atacante crear un programa eBPF que accede a memoria del kernel fuera de los límites...

grlh

desactiva el verificador de ebpf con este único truco extraño como se vio en twitter.com https://twitter.com/bleidl/status/871527499984982016...

CVE-2026-98061

A flaw was found in the Linux kernel's eBPF Extended Berkeley Packet Filter verifier. A privileged local user with the CAPBPF capability can exploit this vulnerability by loading a crafted program that makes a tail call directly from within a callback function. This triggers an inconsistent...

CVE-2026-98034

A flaw was found in the Linux kernel's eBPF Extended Berkeley Packet Filter verifier. This flaw allows a local user to achieve privilege escalation by submitting a specially crafted eBPF program. Because the verifier fails to properly track register precision when writing to kernel pointers, it...

aeBPF2-analysis

aeBPF2, eBPF verifier scalar-ID pruning vulnerability 한국어 문서...

CVE-2026-53670

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...

CVE-2026-53671

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the abstract transformer in prevail treats writes through a TCTX-typed base register as a silent no-op: domemstore in src/crab/ebpftransformer.cpp only models TSTACK stores, and the...

CVE-2026-53706

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706 PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706 PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

EUVD-2026-70245

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706 PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706

PREVAIL is a Polynomial-Runtime eBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4 , the verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag . Because ALU32 arithmetic zero-extends the 32-bit result, the ...

CVE-2026-53670 PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...

CVE-2026-53670 PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...