slides

幻灯片 Conference| Year| Name| Description ---|---|---|--- Zer0Con| 2023| CodeQL + DTrace = 💧🐞 in XNU| 如何使用 CodeQL 在 XNU 中发现多个内存信息泄露...

dtrace-memaccess_cve-2020-27949

fasttrapを使用した他のプロセスのメモリの読み書き /dev/fasttrap デバイスは、pid および objc プロバイダのトラップノードをユーザー空間プロセスに作成するためのもので、パーミッションは 666 です。同じく 666 である /dev/dtrace とは対照的に、fasttrap にはパーミッションチェックがありません。これにより、任意のプロセスが FASTTRAPIOCMAKEPROBE または FASTTRAPIOCGETINSTR ioctl を発行できます。 攻撃者は FASTTRAPIOCMAKEPROBE...

STrace

STrace Steve's Tracer。DTrace on Windows 系统调用钩子的重新实现。可以将其看作一个兼容 PatchGuard 的 SSDT 钩子，但无需任何破解手段。它不支持 SSSDT（win32k API），因为 DTrace 系统调用 API 本身就不支持这个附加表。除了所有用户态 SSDT 系统调用之外，还可以跟踪 Zw 内核 API。 如果你正在为 STrace 开发新插件，请务必读完整篇 README！ 功能 Windows 上的 DTrace 支持多种探针类型，包括 syscall、fbt、etw、profile 等。此重新实现只重新实现了 sysca...

GLSA-202608-24 : DTrace: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202608-24 DTrace: Multiple Vulnerabilities Multiple vulnerabilities have been discovered in DTrace. Please review the CVE identifiers referenced below for details. Tenable has extracted the preceding description block directly fro...

CVE-2026-21996

An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuildfilesymtab...

CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

Linux Distros Unpatched Vulnerability : CVE-2026-35233

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of- range shlink field. When root-level dtrace attaches to...

Linux Distros Unpatched Vulnerability : CVE-2026-21996

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuildfilesymtab...

CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

DEBIAN-CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

CVE-2026-21996

An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuildfilesymtab...

DEBIAN-CVE-2026-21996

An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuildfilesymtab...

CVE-2026-21996

An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuildfilesymtab...

UBUNTU-CVE-2026-21996

An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuildfilesymtab...

CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

EUVD-2026-26702

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

CVE-2026-35233

CVE-2026-35233 is active in the Oracle Linux dtrace subsystem. An unprivileged user can craft a binary with an out-of-range sh_link, enabling an ELF parser to read memory beyond the allocated section cache due to missing bounds checks during object symbol table construction. This can cause a NULL...

CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...

CVE-2026-35233

An unprivileged attacker can craft a user-space process with a malicious ELF binary containing an out-of-range shlink field. When root-level dtrace attaches to -- or instruments -- that process via dtrace -p , pid probes, or USDT, the ELF parser reads heap memory beyond the allocated section cach...