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High —
Nervos CKB Snappy decompress length can be very large and causes out of memory error
### Impact Adversary can create message which compressed size is less than the package limit but the decompressed length is very large such as 1G. It will cost the node many memories to process the network messages, and on the system with less than 1G memory,…
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High —
Nervos CKB Panic on malformed input
### Impact CKB process will panic when received malformed p2p message because of snappy, which is used to compress network messages ### References https://github.com/BurntSushi/rust-snappy/issues/29
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High —
Nervos CKB node panics when processing a block which parent timestamp is too new
### Impact Adversary can initiate DOS attack by broadcasting two consecutive blocks with timestamps in the future. ### Patches Please upgrade to v0.34.1
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High —
ckb type_id script resume may randomly fail
### Impact https://github.com/nervosnetwork/ckb/blob/v0.101.2/script/src/verify.rs#L871-L879 TypeIdSystemScript resume handle is not correct when max_cycles is not enough, `ScriptError::ExceededMaximumCycles` will be raised directly ranther than suspend as ex…
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High —
Dep Group Remote Memory Exhaustion (Denial of Service) in ckb
### Impact A remote attacker could exploit this vulnerability to exhaust ckb process memory of an affected node. ### Patches Upgrade to 0.43.1 or later. ### References After resolving the outpoints of one dep group, we put the corresponding content into a vec…
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High 7.5
Allocation of Resources Without Limits or Throttling in ckb
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.
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High 7.5
Process crashes when the cell used as DepGroup is not alive
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.