Linea

Linea is a type 2 zero knowledge Ethereum Virtual Machine (zkEVM). A zkEVM replicates the Ethereum environment as a rollup and allows developers to build on it as they would on Ethereum mainnet. Linea allows you to deploy any smart contract, use any tool, and develop as if you're building on Ethereum. For users, this enables the experience and security guarantees of Ethereum, but with lower transaction costs.

Linea is a ConsenSys product. From the genesis block of Ethereum, ConsenSys was formed to be the strongest force for decentralization on the planet. We believe that through networks like Ethereum, humankind can achieve more. Our teams will steer the Linea project as we have other public goods, with an eye towards full decentralization and a commitment to open development.

For more information about Linea, please visit https://linea.build/

ConsenSys provides rewards in USDC. For more details about the payment process, please view the Rewards by Threat Level section further below.

KYC Requirement

The provision of KYC is required to receive a reward for this bug bounty program where the following information will be required to be provided:

• Government ID

KYC information is only required on confirmation of the validity of a bug report.

Responsible Publication

ConsenSys adheres to category 3. This Policy determines what information whitehats are allowed to make public from their submitted bug reports. For more information about the category selected, please refer to our Responsible Publication page.

Primacy of Impact vs Primacy of Rules

ConsenSys adheres to the Primacy of Impact for the following severity levels:

• Smart Contract - Critical
• Smart Contract - High
• Smart Contract - Medium
• Smart Contract - Low

If a category’s severity level is covered within the Primacy of Impact, it means that even if the impacted asset is not in-scope but is owned by the project, then it would be considered as in-scope of the bug bounty program as long as it involves an impact under that respective severity level. When submitting a report, just select the Primacy of Impact asset placeholder. If the team behind this project has multiple projects, those other projects are not covered under the Primacy of Impact of this program. Instead, check if those other projects have a bug bounty program on Immunefi.

Testnet and mock files are not covered under the Primacy of Impact.

All other severity levels not listed here are considered under the Primacy of Rules, which means that they are bound by the terms of the bug bounty program.

Known Issue Assurance

ConsenSys commits to providing Known Issue Assurance to bug submissions through their program. This means that ConsenSys will either disclose known issues publicly or at the very least privately via a self-reported bug submission in order to allow for a more objective and streamlined mediation process to prove that an issue is known. Otherwise, assuming the bug report itself is valid, it would result in the bug report being considered in-scope and due 100% of the reward with respect to the bug bounty program terms.

Immunefi Standard Badge

ConsenSys has satisfied the requirements for the Immunefi Standard Badge, which is given to projects that adhere to our best practices.

Rewards are distributed according to the impact the vulnerability could otherwise cause based on the Impacts in Scope table further below.

Repeatable Attack Limitations

In cases of repeatable attacks for smart contract bugs, only the first attack will be counted, regardless of whether the smart contract is upgradable, pausable, or killable.

Restrictions on Security Researcher Eligibility

Security researchers need to comply with the following to be eligible for a reward:

• You represent to us that you and your financial institutions, or any party that owns or controls you or your financial institutions, are (1) not subject to sanctions or otherwise designated on any list of prohibited or restricted parties, including but not limited to the lists maintained by the United Nations Security Council, the U.S. Government (i.e., the Specially Designated Nationals List and Foreign Sanctions Evaders List of the U.S. Department of Treasury and the Entity List of the U.S. Department of Commerce), the European Union or its Member States, the United Kingdom, or other applicable government authority and (2) not located in any country subject to a comprehensive sanctions program implemented by the United States.

Previous Audits

ConsenSys has provided these completed audit review reports for reference. Any unfixed vulnerability mentioned in these reports are not eligible for a reward.

First Audit Round

Diligence:

• Plonk Verifier: https://consensys.io/diligence/audits/2023/06/linea-plonk-verifier/
• Message Service & Rollup: https://consensys.io/diligence/audits/2023/06/linea-message-service/
• Canonical Token Bridge: https://consensys.io/diligence/audits/2023/06/linea-canonical-token-bridge/

Open Zeppelin:

• Linea Bridge Audit: https://blog.openzeppelin.com/linea-bridge-audit-1
• Linea Verifier Audit: https://blog.openzeppelin.com/linea-verifier-audit-1

Second Audit Round

Diligence:

• Proof aggregation, data compression and message service updates Audit: https://consensys.io/diligence/audits/2024/01/linea-contracts-update/

Open Zeppelin:

• Proof aggregation, data compression and message service updates Audit: https://blog.openzeppelin.com/linea-v2-audit

Proof of Concept (PoC) Requirements

A PoC is required for the following severity levels:

• Smart Contract - Critical
• Smart Contract - High
• Smart Contract - Medium
• Smart Contract - Low

All PoCs submitted must comply with the Immunefi-wide PoC Guidelines and Rules. Bug report submissions without a PoC when a PoC is required will not be provided with a reward.

Reward Payment Terms

Payouts are handled by the ConsenSys team directly and are denominated in USDC.

All smart contract code of Linea can be found at https://github.com/Consensys/linea-contracts/tree/76afb8d8b9a8ae58a6fa2b58b7a04a9ff6b26973/contracts. Documentation for the assets provided in the table can be found at https://docs.linea.build/

Other helpful links include:

• Infura docs - https://docs.infura.io/networks/linea
• RPC https://linea-goerli.infura.io/v3/

These impacts are out of scope for this bug bounty program.

All Categories

• Impacts requiring attacks that the reporter has already exploited themselves, leading to damage
• Impacts caused by attacks requiring access to leaked keys/credentials
• Impacts caused by attacks requiring access to privileged addresses (governance, strategist) except in such cases where the contracts are intended to have no privileged access to functions that make the attack possible
• Impacts relying on attacks involving the depegging of an external stablecoin where the attacker does not directly cause the depegging due to a bug in code
• Mentions of secrets, access tokens, API keys, private keys, etc. in Github will be considered out of scope without proof that they are in-use in production
• Best practice recommendations
• Feature requests
• Impacts on test files and configuration files unless stated otherwise in the bug bounty program

Smart Contracts and Blockchain/DLT

• Incorrect data supplied by third party oracles
  • Not to exclude oracle manipulation/flash loan attacks
• Impacts requiring basic economic and governance attacks (e.g. 51% attack)
• Lack of liquidity impacts
• Impacts from Sybil attacks
• Impacts involving centralization risks
• Best practice recommendations

The following activities are prohibited by this bug bounty program:

• Any testing on mainnet or public testnet deployed code; all testing should be done on local-forks of either public testnet or mainnet
• Any testing with pricing oracles or third-party smart contracts
• Attempting phishing or other social engineering attacks against our employees and/or customers
• Any testing with third-party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
• Any denial of service attacks that are executed against project assets
• Automated testing of services that generates significant amounts of traffic
• Public disclosure of an unpatched vulnerability in an embargoed bounty