4-byte script triggers null ptr deref and segfault
From:
Brian Carpenter
Subject:
4-byte script triggers null ptr deref and segfault
Date:
Thu, 17 Sep 2015 11:50:44 -0500
While fuzzing GNU bash version 4.3.42(1)-release (x86_64-unknown-linux-gnu) with AFL(http://lcamtuf.coredump.cx/afl), I stumbled upon a 4-byte 'script' that triggers a null ptr deref and causes a segfault.