Platform: Code4rena
Start Date: 07/06/2022
Pot Size: $75,000 USDC
Total HM: 11
Participants: 77
Period: 7 days
Judge: gzeon
Total Solo HM: 7
Id: 124
League: ETH
Rank: 51/77
Findings: 1
Award: $89.19
🌟 Selected for report: 0
🚀 Solo Findings: 0
🌟 Selected for report: berndartmueller
Also found by: 0x1f8b, 0x29A, 0xDjango, 0xNazgul, 0xNineDec, 0xf15ers, 0xkatana, 0xmint, Bronicle, Chom, Cityscape, Deivitto, Funen, GimelSec, GreyArt, IllIllI, JC, Lambda, Meera, Nethermind, Picodes, PierrickGT, Ruhum, Sm4rty, Tadashi, TerrierLover, TomJ, Trumpero, Waze, _Adam, antonttc, ayeslick, c3phas, catchup, cccz, cloudjunky, cryptphi, csanuragjain, delfin454000, dipp, ellahi, fatherOfBlocks, hake, hansfriese, hyh, joestakey, jonah1005, kenzo, minhquanym, oyc_109, sach1r0, saian, simon135, slywaters, sorrynotsorry, sseefried, unforgiven, xiaoming90, z3s, zzzitron
89.1872 USDC - $89.19
Some tokens (like USDT) do not work when changing the allowance from an existing non-zero allowance value.They must first be approved by zero and then the actual allowance must be approved.
None
Set the allowance to zero immediately before each of the existing approve() calls.
#0 - ckoopmann
2022-06-15T05:34:31Z
I think this is a duplicate of: https://github.com/code-423n4/2022-06-notional-coop-findings/issues/221
#1 - gzeoneth
2022-06-26T15:59:26Z
As warden's QA report.