$ ctf42

#off-by-null CTF challenges

4 CTF challenges using off-by-null from 4 CTFs (2020–2024), 4 with writeups. Mostly Misc (50%) and Pwn (50%).

Misc · 2 Pwn · 2

Often combined with

#info-leak 1 #container-escape 1 #kernel-uaf 1 #free-hook 1 #tcache-poisoning 1 #house-of-einherjar 1 #heap 1

Challenges

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Challenge CTF Weight Category Has
babyheap IJCTF 2020 – Misc files wu 2
CoRJail corCTF 2022 24.92 Pwn files wu 1
OOMG_SPACE2 SunshineCTF 2020 23.34 Misc files wu 1
baby_talk DiceCTF 2024 Quals 54.40 Pwn files wu 1