OpenBSD <= 5.5 Local Kernel Panic

From: Alejandro Hernandez <>
To: <>
Subject: OpenBSD <= 5.5 Local Kernel Panic

OpenBSD <= 5.5 (All architectures) is prone to a local DoS condition by triggering a kernel panic through a malformed ELF executable.

A patch has been released to address this issue. See "013 Reliability Fix" at:

More details and PoC code:


Alejandro Hernandez
Senior Security Consultant

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