Silent returns in _processPayment may cause users to lose assets

Lines of code Vulnerability details Impact The processPayment function of the JBTiered721Delegate contract is used to mint NFT for the user after receiving the tokens sent by the user. When the token sent by the user differs from pricingCurrency, it tries to get the corresponding price via...

Upgraded Q -> M from 236 [1666363743332]

Judge has assessed an item in Issue 236 as Medium risk. The relevant finding follows: ERC721 token can be lost in fillAsk PROBLEM When a user fills an ask order by calling fillAsk, the ERC721.transferFrom method is used to transfer the NFT to the receiver. Should the receiver be a smart contract...

Incorrect calculation of totalRedemptionWeight in JBTiered721DelegateStore.sol, we use weight + number of reserved token instead of weight + weight

Lines of code Vulnerability details Impact After NFT minted, the NFT has redemption weight based on the contribution floor price, the logic that calculate the total redemption weight is storedTier = storedTierOfnfti + 1; // Add the tier's contribution floor multiplied by the quantity minted. weig...

The tier setting parameter are unsafely downcasted from type uint256 to type uint80 / uint48 / uint40 / uint16

Lines of code Vulnerability details Impact The tier setting parameter are unsafely downcasted from uint256 to uint80 / uint48 / uint16 the tier is setted by owner is crucial because the parameter affect how nft is minted. the the callstack is JBTiered721Delegate.solinitialize - StorerecordAddTier...

User can mint more NFT than initial supply because of improper check of _storedTier.remainingQuantity in /JBTiered721DelegateStore#recordMint

Lines of code Vulnerability details Impact User can mint more NFT initial supply because of inproper check of storedTier.remainingQuantity For example, the owner can set the initial amount to 3, but 6 NFT can be minted. when the mintFor is called, the function calls JBTiered721DelegateStore.sol t...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: i2c: Fix a potential use after free Free the adap structure only after we are done using it. This patch just moves the putdevice down a bit to avoid the use after free. wsa: added comment to the code, added Fixes...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: i2c: Fix a potential use after free Free the adap structure only after we are done using it. This patch just moves the putdevice down a bit to avoid the use after free. wsa: added comment to the code, added Fixes...

Lack Of A Safety Mechanism For Deducting Selling Fees

Lines of code Vulnerability details Vulnerability Details The transferFees function of the BlurExchange contract calculates and transfers selling fees to multiple fee receivers as shown in L477 - 478 in code snippet 1. The selling fees would be deducted from the selling price. In other words, a...

Possible loss of assets for seller through cross-contract re-entrancy

Lines of code Vulnerability details Impact BlurExchange.execute applies a reentrancyGuard modifier, however does not apply the Check-Effect-Interact pattern since cancelledOrFilledsellHash and cancelledOrFilledbuyHash are set to true after the transfers. This presents the risk of a cross-contract...

Buyer can receive chargeback from fees.

Lines of code Vulnerability details Impact Since there is no check on who the fees.recipient is in the sell order, the buyer could be the fees recipient, with some additional signature malleability to pass the signature validation, the buyer would receive fees, thus pay less for the NFT. Proof of...

[M1] _executeTokenTransfer can succeed without transferring tokens

Lines of code Vulnerability details Impact NFT Tokens may not be transferred in execute PoC During compile time AssetType can be either ERC721 or ERC1155 0 or 1. However, in execution time this value can be more than 1. ​ ​ The internal function executeTokenTransfer will succeed when AssetType 1...

_executeTokenTransfer() can silently fail for malicious ERC721 implementations.

Lines of code Vulnerability details Impact execute calls executeTokenTransfer to perform the NFT transfer from seller to buyer. The function assumes correct safeTransferFrom functionality and does not check balances. In case of malicious - or poorly designed pausable ERC721 implementations, this...

AN ATTACKER CAN CREATE A SHORT PUT OPTION ORDER ON AN NFT THAT DOES NOT SUPPORT ERC721 (LIKE CRYPTOPUNK), AND THE USER CAN FULFILL THE ORDER, BUT CANNOT EXERCISE THE OPTION

Lines of code Vulnerability details Impact Blur is kind of NFT marketplace where will somehow attracts high value NFT items like cryptopunk. Therefore assuming the platform will handle cryptopunk NFT is a common thing, and this raise an issue. An attacker can create a short put option on...

PT-2022-34731 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0 Description: The issue is related to an underflow in nft counters enabled at nf tables addchain. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel version...

CVE-2022-39847

Use after free vulnerability in setnftpid and signalhandler function of NFC driver prior to SMR Oct-2022 Release 1 allows attackers to perform malicious actions...

CVE-2022-39847

Use after free vulnerability in setnftpid and signalhandler function of NFC driver prior to SMR Oct-2022 Release 1 allows attackers to perform malicious actions...

The users can steal the Gobbler from the team

Lines of code Vulnerability details Impact In case mintReservedGobblers start minting let's say 20 for team + 20 for community And the loop on batchMint is now i == 3 Now Alice will invoke mintFromGoo to mint one Gobbler he will steal this Gobbler from the team address Proof of Concept Let’s say...

ArtGobbler can be abused to squirt more goo without providing any NFT

Lines of code Vulnerability details Impact Some ERC20 tokens don’t throw but just return false when a transfer fails. This can be abused to trick the gobble function to gobble without providing any valid art. A good example of such a token is ZRX: Etherscan code This issue can be abused by a...

Some real-world NFT tokens may support both ERC721 and ERC1155 standards, which may break gobble ()

Lines of code Vulnerability details Impact Detailed description of the impact of this finding. Proof of Concept Provide direct links to all referenced code in GitHub. Add screenshots, logs, or any other relevant proof that illustrates the concept. Tools Used Recommended Mitigation Steps --- The...

A malicious user can claim and successfuly steal a gobbler NFT token.

Lines of code Vulnerability details Impact A malicious user can claim and successfuly steal a gobbler NFT token in the function claimGobbler. Proof of Concept The function claimGobbler is used from the mintlisted users to claim a gobbler using a merkle proof. However there is no check to ensure...