CTF challenges & writeups

20 challenges tagged #double-free ✕ clear · browse all techniques

Challenge	CTF	Weight	Category	Has
babyjeep #double-free #fastbin-dup	BlueHens 2021	22.62	Pwn	files wu 1
flippidy #heap #double-free #tcache #glibc-2.27	DiceCTF 2021	24.82	Pwn	files wu 3
Gotta_Go_Fast #double-free	ImaginaryCTF 2021	–	Pwn	files wu 1
Plaidflix #use-after-free (uaf)#double-free #safe-linking #tcache-poisoning	PlaidCTF 2021	99.64	Pwn	files wu 1
invisible #realloc-zero-size-free #double-free #fastbin	ASIS 2020 Quals	64.97	Misc	files wu 1
schnurtelefon #double-free	Hack.lu 2019	68.75	Misc	files wu 1
chat #double-free #tcache-poisoning #got-overwrite	RCTF 2019	–	Misc	files wu 2
zero_to_hero #poison-null-byte #tcache-poisoning #double-free	picoCTF 2019	–	Pwn	files wu 3
asvdb #uninitialized-variable #use-after-free (uaf)#double-free #tcache-poisoning #free-hook-one-gadget	ASIS 2018 Finals	55.00	Misc	files wu 3
groot #double-free	HITCON 2018	–	Misc	files wu 1
stringer #off-by-one #double-free #mmap-chunk #fastbin-attack #malloc-hook	RCTF 2018	–	Misc	files wu 3
auir #heap-uaf #double-free #fastbin-attack #libc-leak #c++	CSAW 2017 Quals	24.61	Misc	files src wu 3
secure_keymanager #double-free #fastbin-dup #format-string #got-overwrite	SECCON 2017 Quals	30.00	Misc	files wu 3
LogService #double-free #fastbin-attack	TeamItaly 2023	24.88	Pwn	files wu 1
The_Mound #custom-heap #double-free #arbitrary-write #got-overwrite	RaRCTF 2021	24.53	Pwn	files wu 1
Pwncry #double-free	InCTF 2020	53.95	Misc	files wu 1
HarekazeNote #double-free	Harekaze 2019	23.87	Misc	files wu 1
BabyHeap #off-by-one #double-free #fastbin-dup #malloc-hook-overwrite	0CTF 2018 Quals	–	Pwn	files wu 1
freenote2018 #double-free #fastbin-dup #overlapping-chunks #malloc-hook-overwrite	0CTF 2018 Finals	–	Pwn	files wu 1
easiest #fastbin-dup #double-free #stdout-vtable #fsop	BCTF 2018	–	Misc	files wu 1

Challenges