Chaotic Eclipse Released A PoC For NVIDIA GreenSection Memory Corruption Zero-Day
Researcher Chaotic Eclipse released GreenSection, a PoC exploit for an NVIDIA Windows user-mode shared-memory flaw enabling out-of-bounds writes and potential dwm.exe compromise.
Researcher Chaotic Eclipse (aka Nightmare Eclipse) released a PoC named GreenSection for a zero-day in NVIDIA's Windows user-mode components. Multiple NVIDIA components share a global memory section in BaseNamedObjects with full read/write access to all users; although checks prevent misuse, runtime reuse of section data can cause an out-of-bounds write. The unstable PoC crashes applications using Vulkan or OpenGL and could potentially cross user boundaries or compromise the Windows Desktop Window Manager (dwm.exe), though impact was not fully investigated. The researcher recently published similar zero-day PoCs against Kaspersky Endpoint Security, Avast Antivirus, and CrowdStrike Falcon.
- Shared global memory section with full R/W access reused at runtime enables out-of-bounds writes.
- PoC crashes Vulkan/OpenGL applications; may allow cross-user access or dwm.exe compromise.
- Researcher recently released zero-day PoCs: HardBreacher (Kaspersky), PrettyPrague (Avast), FalconFlank (CrowdStrike).
From the original article
3 min read at securityaffairs.com
Chaotic Eclipse released GreenSection, a PoC exploit for an Nvidia GreenSection Memory Corruption Zero-Day Security researcher Chaotic Eclipse, also known as INFINITE NIGHTMARE, MSNightmare and Nightmare-Eclipse, released a new zero-day exploit targeting Nvidia. The researcher named the exploit GreenSection, it triggers a Memory Corruption flaw.
By Pierluigi Paganini · securityaffairs.com
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