CVE-2021-45699: Allocation of Resources Without Limits or Throttling

An issue was discovered in the ckb crate before 0.40.0 for Rust. Remote attackers may be able to conduct a 51% attack against the Nervos CKB blockchain by triggering an inability to allocate memory for the misbehavior HashMap...

CVE-2021-45700: Undefined Security Weakness

An issue was discovered in the ckb crate before 0.40.0 for Rust. Attackers can cause a denial of service Nervos CKB blockchain node crash via a dead call that is used as a DepGroup...

CVE-2021-45698: Undefined Security Weakness

An issue was discovered in the ckb crate before 0.40.0 for Rust. A getblocktemplate RPC call may fail in situations where it is supposed to select a Nervos CKB blockchain transaction with a higher fee rate than another transaction...

ckb-analyzer (0.39.2), ckb-app-config (>=0.37.0-pre, <=0.100.0-rc2) +57 more potentially affected by CVE-2021-45697 via molecule (>=0.2.5, <=0.7.1)

molecule CARGO version =0.2.5, =0.37.0-pre, =0.4.0, =0.37.0-pre, =0.37.0-pre, =0.37.0-pre, =0.40.0, =0.40.0, =0.37.0-pre, =0.37.0-pre, =0.37.0-pre, =0.37.0-pre, =0.1.0, =0.37.0-pre, =0.39.1 and more Source cves: CVE-2021-45697 Source advisory: OSV:GHSA-82HM-VH7G-HRH9...

Remote memory exhaustion in ckb

In the ckb sync protocol, SyncState maintains a HashMap called 'misbehavior' that keeps a score of a peer's violations of the protocol. This HashMap is keyed to PeerIndex an alias for SessionId, and entries are never removed from it. SessionId is an integer that increases monotonically with every...

GHSA-48VQ-8JQV-GM6F Remote memory exhaustion in ckb

In the ckb sync protocol, SyncState maintains a HashMap called 'misbehavior' that keeps a score of a peer's violations of the protocol. This HashMap is keyed to PeerIndex an alias for SessionId, and entries are never removed from it. SessionId is an integer that increases monotonically with every...

Miner fails to get block template when a cell used as a cell dep has been destroyed.

Impact The RPC getblocktemplate fails when a cell has been used as a cell dep and an input in the different transactions. Say cell C is used as a dep group in the transaction A, and is destroyed in the transaction B. The node adds transaction A first, then B into the transaction pool. They are bo...

Remote memory exhaustion in ckb

In the ckb sync protocol, SyncState maintains a HashMap called 'misbehavior' that keeps a score of a peer's violations of the protocol. This HashMap is keyed to PeerIndex an alias for SessionId, and entries are never removed from it. SessionId is an integer that increases monotonically with every...

RUSTSEC-2021-0107 Miner fails to get block template when a cell used as a cell dep has been destroyed.

Impact The RPC getblocktemplate fails when a cell has been used as a cell dep and an input in the different transactions. Say cell C is used as a dep group in the transaction A, and is destroyed in the transaction B. The node adds transaction A first, then B into the transaction pool. They are bo...

RUSTSEC-2021-0108 Remote memory exhaustion in ckb

In the ckb sync protocol, SyncState maintains a HashMap called 'misbehavior' that keeps a score of a peer's violations of the protocol. This HashMap is keyed to PeerIndex an alias for SessionId, and entries are never removed from it. SessionId is an integer that increases monotonically with every...

PT-2021-24274

Name of the Vulnerable Software and Affected Versions: ckb crate versions prior to 0.40.0 Description: The issue allows attackers to cause a denial of service, specifically a Nervos CKB blockchain node crash, by utilizing a dead call as a DepGroup. It is possible to create a malign transaction th...

PT-2021-24273

Name of the Vulnerable Software and Affected Versions: ckb crate versions prior to 0.40.0 Description: The issue allows remote attackers to conduct a 51% attack against the Nervos CKB blockchain by triggering an inability to allocate memory for the misbehavior HashMap. In the ckb sync protocol, a...

PT-2021-24272

Name of the Vulnerable Software and Affected Versions: ckb crate versions prior to 0.40.0 Description: An issue was discovered in the ckb crate where a get block template RPC call may fail when selecting a Nervos CKB blockchain transaction with a higher fee rate than another transaction. This...