Missing _checkAmountWithBalance check in deposit functions

Lines of code Vulnerability details Impact When computing the input or output amount of a swap checkAmountWithBalance is called to ensure that precision errors do not occur and that the pool does not lose any value. However, checkAmountWithBalance is not called in depositGivenInputAmount and...

Missing slippage protection in _swap()

Lines of code Vulnerability details Impact Without slippage, If the price of the tokens changes significantly during the swap, it could result in a large slippage, causing users to lose a significant amount of funds. An attacker can watch the mempool and then using flash bots execute a sandwich...

Attacker can profitable trade with the pool

Lines of code Vulnerability details Impact The swap invariant used is unstable with large pool reserves locked. An attacker can generate a profit by trading with the pool, hurting Liquidity Providers. Proof of Concept To find some vulernable configurations we fuzzed the swap function of the Prote...

No deadline check when swapping tokens in swapGivenInputAmount() and swapGivenOutputAmount

Lines of code Vulnerability details Impact Missing deadline checks allow pending transactions to be maliciously executed in the future. Without deadline parameters, as a consequence, users can have their operations executed at unexpected times, when the market conditions are unfavorable. Proof of...

SUSE CVE-2023-38898

An issue in Python cpython v.3.7 allows an attacker to obtain sensitive information via the asyncio.swapcurrenttask component. NOTE: this is disputed by the vendor because 1 neither 3.7 nor any other release is affected it is a bug in some 3.12 pre-releases; 2 there are no common scenarios in whi...

CVE-2023-38898

An issue in Python cpython v.3.7 allows an attacker to obtain sensitive information via the asyncio.swapcurrenttask component. NOTE: this is disputed by the vendor because 1 neither 3.7 nor any other release is affected it is a bug in some 3.12 pre-releases; 2 there are no common scenarios in whi...

CVE-2023-38898

An issue in Python cpython v.3.7 allows an attacker to obtain sensitive information via the asyncio.swapcurrenttask component. NOTE: this is disputed by the vendor because 1 neither 3.7 nor any other release is affected it is a bug in some 3.12 pre-releases; 2 there are no common scenarios in whi...

Python cpython Security Vulnerabilities

cpython is the Python Foundation's Python interpreter implemented in the C language. Python A security vulnerability exists in version 3.7 of cpython that stems from a crash due to improper reference counting in the asyncio.swapcurrenttask module...

PSF-2023-7 Reference count issue in _asyncio._swap_current_task()

An issue in Python CPython 3.12.0b1 allows an attacker to obtain sensitive information via the asyncio.swapcurrenttask component...

TokenisableRange.sol claimFee function allows more slippage than intended due to incorrect calculation

Lines of code Vulnerability details Impact In TokenisableRange.sol, claimFee collects swap fees generated in uniswap and compound these fees by minting to Uniswap pool. During minting collected fees back in uniswap, slippage protection is conducted by comparing addedValue - a value based on added...

swapExactAmountOut() does not have deadline which allows pending transactions to be maliciously executed

Lines of code Vulnerability details Impact In LiquidationRouter.sol, swapExactAmountOut function has no deadline for the transaction when swapping. File: src/LiquidationRouter.sol function swapExactAmountOut LiquidationPair liquidationPair, address receiver, uint256 amountOut, uint256 amountInMax...

deadline using swap functions does not verify that the deadline has passed/expired

Lines of code Vulnerability details Impact In V3Proxy.sol contract, deadline is used in functions like swapExactTokensForTokens, swapTokensForExactTokens, swapExactETHForTokens, swapETHForExactTokens, swapTokensForExactETH and swapExactTokensForETH etc to ensure that the transaction can be execut...

swapExactAmountOut() no deadline protection

Lines of code Vulnerability details Impact no deadline protection , users may suffer losses Proof of Concept LiquidationRouter.swapExactAmountOut use for swap tokens. However, currently only amountInMax slippage protection is provided, and not deadline protection like the common AMMS protection...

Balancer swap fee is not set and quote properly when Rebalancing

Lines of code Vulnerability details Impact Rebalance may revert Proof of Concept The rebalance functon tightly integrate with stargate and layezero however, the swap fee is not quoted and calculated the swap erc20.approveaddressrouter, amount; router.swap dstChainId, srcPoolId, dstPoolId, oft,...

PT-2023-9619 · Python · Python

Name of the Vulnerable Software and Affected Versions: Python versions prior to 3.9.1 Python cpython version 3.7 Python CPython 3.12.0b1 Description: An issue in the asyncio. swap current task component of Python allows an attacker to obtain sensitive information. The vulnerability is related to...

No fee swap is possible through addLiquidity and removeLiquidityImbalanced

Lines of code Vulnerability details impact Some will not pay swap fees even after the swap fee is added. proof of concept This is equivalent to swap 1000 tokenA to 500 tokenB, but no fee calculation code lies in adding and removing liquidity. Add this test in Well.AddLiquidity.t.sol. function...

Users can swap tokens through shift() function without _updatePumps()

Lines of code Vulnerability details Impact Any user can swap tokens just transferring tokens to the contract in a batch with calling shift function. The problem is that the shift doesn't call the updatePumps function which update oracle. This way attackers can exploit this vulnerability to...

Possible reentrancy during redemption/swap

Lines of code Vulnerability details Impact Redeemers might charge more collaterals during redemption/swap by the reentrancy attack. Proof of Concept Redeemers can redeem the agToken for collaterals in Redeemer contract and redeem burns the agToken and transfers the collaterals. function redeem...

No check for active Arbitrum Sequencer

Lines of code Vulnerability details Impact If the Arbitrum sequencer goes down, the stale ratio will be used during the swap. Proof of Concept readChainlinkFeed gets the price from chainlink oracle and the ratio is used during the swap. function readChainlinkFeed uint256 quoteAmount,...

uint128 changeAmount might overflow

Lines of code Vulnerability details Impact This issue is an edge case, that uint128 changeAmount could overflow, making the protocol fail for certain amount of swap. Proof of Concept Let's break down the changeAmount: 1. amountOut/amountIn 2. BASE27 3. normalizer File:...