$ ctf42

#tcache CTF challenges

22 CTF challenges using tcache from 16 CTFs (2018–2022), 22 with writeups. Mostly Misc (59%) and Pwn (41%).

Misc · 13 Pwn · 9

Often combined with

#heap 7 #heap-overflow 5 #use-after-free 5 #libc-2.27 3 #heap-exploitation 3 #off-by-one 2 #heap-overlap 2 #c++-stl 1 #heap-leak 1 #glibc 1 #off-by-one-null 1 #glibc-2.27 1 #double-free 1 #strlen-overflow 1 #house-of 1

Challenges

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Challenge CTF Weight Category Has
Unintended
#strlen-overflow#heap-overflow#tcache
 RaRCTF 2021 24.53 Pwn files wu 3
pwn02
#off-by-one#null-byte-poisoning#tcache#heap-overlap
 WhiteHat 2018 Quals – Misc files wu 3
cancelled
#io-file#off-by-one#tcache#heap-exploitation
 UTCTF 2020 – Misc files wu 3
rachell
#house-of#tcache
 TSG 2020 – Misc files wu 3
violence-fixer
#heap-overflow#tcache
 TSG 2020 – Misc files wu 3
error_program
#heap#use-after-free (uaf)#tcache#libc-2.27
 Defenit 2020 23.88 Misc files wu 3
cache
#heap#use-after-free (uaf)#tcache#heap-leak
 Defcamp 2022 – Pwn files wu 3
Online_Nonogram
#heap#tcache#uninitialized
 TokyoWesterns 2020 – Misc files wu 3
SecureKarte
#heap#tcache
 TokyoWesterns 2019 – Misc files wu 3
flippidy
#heap#double-free#tcache#glibc-2.27
 DiceCTF 2021 24.82 Pwn files wu 3
lil_wishes_db
#use-after-free (uaf)#tcache#one-gadget
 X-MAS 2020 – Misc files wu 2
Notepad
#use-after-free (uaf)#tcache#format-string
 VolgaCTF 2020 Quals 32.80 Misc files wu 2
Suffarring
#heap-overflow#tcache
 PlaidCTF 2019 95.72 Misc files wu 2
stl_container
#c++-stl#heap-exploitation#tcache#libc-2.27
 De1CTF 2020 24.28 Misc files wu 2
Monke
#use-after-free (uaf)#tcache
 UTCTF 2021 – Pwn files wu 1
vi-deteriorated
#tcache#cpp-exploitation
 TokyoWesterns 2020 – Misc files wu 1
KrampusGifts
#race-condition#tcache#heap-exploitation#multithreading
 X-MAS 2022 – Pwn files wu 1
BabyHeap
#null-byte-off-by-one#heap-overlap#tcache
 0CTF 2019 Quals – Pwn files wu 1
Shop_Manager
#heap-overflow#tcache
 COMPFEST 2021 – Pwn files wu 1
roshambo
#heap-overflow#tcache
 WMCTF 2020 – Misc files wu 1
Warmup
#heap#tcache#libc-2.27
 darkCON 2021 24.06 Pwn files wu 1
SiceSiceBaby
#heap#off-by-one-null#tcache#glibc
 DiceCTF 2021 24.82 Pwn files wu 1