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Cache the Frames, Catch the Vulnerabilities in Kernel Streaming

Talkat CODE BLUE 2025 · 2025-11-18..11-19· [security]
slides:none on file

Research uncovers more than 20 kernel‑streaming bugs and builds working exploits that reach kernel EOP on modern Windows (tested on 22H2 and 24H2). Root causes are concrete: a missing size check in the MDL catch buffer overflow path (two bugs), header/MDL pairing mismatch when submitting multi‑frame IOCTLs, and a forgotten lock leading to arbitrary physical write via MDL misuse. Exploitation uses IOCTLs, MDL plumbing, pipe spray and lookaside list corruption; demos successfully write controlled data to kernel memory and achieve EOP.

AI-written summary · about

  1. 0:00Kernel streaming vulnerabilities
  2. 4:43Frame handling issues
  3. 8:55MDL cache overflow
  4. 12:52MDL mismatch overflow
  5. 18:33Forgotten lock exploitation
  6. 28:04Frame misalignment attack
  7. 37:36Exploitation and impact
  8. 38:17Research takeaways
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