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OtterRoot: Netfilter Universal Root 1-day

An article by Pedro Pinto about exploiting a slab double-free bug in the netfilter subsystem.

Pedro wrote two exploits for this bug: one that relies on ROP and that was used to exploit a kernelCTF instance, and the other that gets physical memory arbitrary read/write without relying on any offsets.
OtterSec OtterRoot: Netfilter universal root 1-day A peek into the state of Linux kernel security and the open-source patch-gap. We explore how we monitored commits to find new bug fixes and achieved 0day-like capabilities by exploiting a 1-day vulnerability.
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