393819 matches found
php-bypass-disable-functions
php-bypass-disable-functions Linux 上の PHP の disablefunctions セキュリティ制御をバイパスする方法を示すデモプロジェクトです。プロセスは特別な /proc/self/map ファイルを標準のファイル操作（open/seek/read/write）で検査し、さらには自身のメモリを書き込むこともできます。 テスト済み: PHP 7.3.5, x8664 Linux 参照: https://seclists.org/bugtraq/2019/May/52 使い方 regularuser@7981d86dd9aa:/$...
kernel: vsock/virtio: fix zerocopy completion for multi-skb sends
A flaw was found in the Linux kernel's vsock/virtio component. This vulnerability occurs during zerocopy completion for large messages fragmented into multiple socket kernel buffers skbs. An issue in how user arguments uargs are handled for these buffers can lead to pinned user pages not being...
kernel: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use
A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem, specifically within the SEV Secure Encrypted Virtualization feature. A malicious guest operating system utilizing SEV-SNP Secure Nested Paging can exploit an out-of-bounds write vulnerability due to improper...
kernel: nfsd: defer vfree of compound ops to fix rpc_status UAF
A flaw was found in the nfsd component of the Linux kernel. This vulnerability, a use-after-free, occurs when a specific memory buffer is prematurely released while another process is still trying to access it. This timing issue can lead to memory corruption. This could result in a system crash...
kernel: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev
A flaw was found in the Linux kernel's ipvlan component. The ipvlan devices do not properly inherit neededheadroom and neededtailroom from the physical device phydev. This can lead to insufficient space being reserved for packet headers and trailers, potentially causing memory corruption, such as...
kernel: igc: set tx buffer type for SMD frames
A flaw was found in the Linux kernel's igc network driver. The igcfpeinitsmdframe function, responsible for initializing transmit TX buffer fields for Stream-based Data SMD frames, does not correctly set the buffer type. This can result in stale XDP eXpress Data Path or XSK AFXDP socket types...
kernel: vsock/virtio: bind uarg before filling zerocopy skb
A flaw was found in the Linux kernel's vsock/virtio transport. This vulnerability occurs when the system processes zerocopy socket buffers skbs and encounters an error during memory allocation for fixed-buffer vectored data. The system may attempt to free memory incorrectly, leading to a...
kernel: svcrdma: Reject inline replies that overflow the pull-up buffer
A flaw was found in the Linux kernel's svcrdma component, which handles network communication using Remote Direct Memory Access RDMA. A remote attacker can send a specially crafted network reply that is larger than expected. This can cause the system to write data beyond the intended memory area,...
Cooper-ndss-2022
Cooper: 협동 변이를 이용한 스크립트 언어 바인딩 코드 테스트 Cooper는 협동 변이를 활용하여 스크립트 언어의 바인딩 코드를 테스트하여 메모리 안전 문제를 찾습니다. 협동 변이는 스크립트 코드와 관련 문서 객체를 동시에 수정하여 바인딩 코드의 다양한 코드 경로를 탐색합니다. 협동 변이를 지원하기 위해, 우리는 스크립트 코드와 문서 객체 간의 관계를 추론하여 2차원 변이를 안내합니다. 우리는 우리 도구 Cooper를 세 가지 널리 사용되는 상용 소프트웨어, Adobe Acrobat, Foxit Reader 및...
CVE-2025-53020-PoC
CVE-2025-53020 - Apache httpd HTTP/2 메모리 고갈 PoC 제가 2025년 중반에 발견한 Apache httpd의 HTTP/2 구현에서 메모리 고갈 취약점인 CVE-2025-53020을 시연하는 개념 증명입니다. 📖 심층 분석 : galbarnahum.com/posts/apache-httpd-cve-2025-53020 취약점 개요 Apache httpd는 HTTP/2 헤더 처리를 통해 서비스 거부 공격에 취약합니다. 이 취약점은 HTTP/2 요청에서 반복되는 헤더 이름을 처리할 때 불필요한 메모리...
ICSFuzz
ICSFuzz: ICS制御アプリケーション用ファジングツール 概要 ICSFuzzは、ICS制御アプリケーションの脆弱性を発見するためのPLC側ファジングツールです。 著者: Dimitris Tychalas @ditihala .. @ditihala: https://www.twitter.com/ditihala インストール...
CVE-2025-24201-WebKit-Vulnerability-Detector-PoC-
CVE-2025-24201 WebKit 脆弱性検出器 PoC この概念実証コードは、WebKit ベースのブラウザが CVE‑2025‑24201 に対して脆弱かどうかを検出します。これは、WebGL 実装における不適切な機能検証によって引き起こされる、深刻度の高いバッファ外書き込み（out-of-bounds write）の脆弱性 です。 🔍 脆弱性の概要 CVE‑2025‑24201 は、WebGLRenderingContext（WebGL 1）が定数 PRIMITIVERESTARTFIXEDINDEX（0x8D69）の有効化を許可したときに発生します。この機能は WebGL...
kernel: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev
A flaw was found in the Linux kernel's ipvlan component. The ipvlan devices do not properly inherit neededheadroom and neededtailroom from the physical device phydev. This can lead to insufficient space being reserved for packet headers and trailers, potentially causing memory corruption, such as...
kernel: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use
A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem, specifically within the SEV Secure Encrypted Virtualization feature. A malicious guest operating system utilizing SEV-SNP Secure Nested Paging can exploit an out-of-bounds write vulnerability due to improper...
kernel: vsock/virtio: bind uarg before filling zerocopy skb
A flaw was found in the Linux kernel's vsock/virtio transport. This vulnerability occurs when the system processes zerocopy socket buffers skbs and encounters an error during memory allocation for fixed-buffer vectored data. The system may attempt to free memory incorrectly, leading to a...
kernel: igc: set tx buffer type for SMD frames
A flaw was found in the Linux kernel's igc network driver. The igcfpeinitsmdframe function, responsible for initializing transmit TX buffer fields for Stream-based Data SMD frames, does not correctly set the buffer type. This can result in stale XDP eXpress Data Path or XSK AFXDP socket types...
kernel: nfsd: fix stale s2s_cp_stateids IDR entry for async COPY
A flaw was found in the Linux kernel's Network File System Daemon nfsd component. When performing an asynchronous async copy operation, a programming error causes a stale identifier IDR entry to point to memory that has already been reused. This can lead to memory corruption, where the system...
kernel: svcrdma: Reject inline replies that overflow the pull-up buffer
A flaw was found in the Linux kernel's svcrdma component, which handles network communication using Remote Direct Memory Access RDMA. A remote attacker can send a specially crafted network reply that is larger than expected. This can cause the system to write data beyond the intended memory area,...
kernel: nfsd: fix UAF in async copy cancel and shutdown
A flaw was found in the Linux kernel's nfsd component. A race condition exists during asynchronous copy cancellation and shutdown operations, which can lead to a Use-After-Free UAF vulnerability. This allows an async copy object to be freed or used after being freed, potentially causing memory...
kernel: nfsd: defer vfree of compound ops to fix rpc_status UAF
A flaw was found in the nfsd component of the Linux kernel. This vulnerability, a use-after-free, occurs when a specific memory buffer is prematurely released while another process is still trying to access it. This timing issue can lead to memory corruption. This could result in a system crash...