CVE-2022-29219
AttesterSlashing number overflow
描述
### Impact Possible consensus split given maliciously-crafted `AttesterSlashing` or `ProposerSlashing` being included on-chain. Since we represent `uint64` values as native javascript `number`s, there is an issue when those variables with large (greater than 2^53) `uint64` values are included on chain. In those cases, Lodestar may view _valid_ `AttesterSlashing` or `ProposerSlashing` as _invalid_, due to rounding errors in large `number` values. This causes a consensus split, where Lodestar nodes are forked away from the main network. Similarly Lodestar may consider _invalid_ `ProposerSlashing` as _valid_, thus including in proposed blocks that will be considered invalid by the network. ### Patches https://github.com/ChainSafe/lodestar/pull/3977 ### Workarounds Use `BigInt` to represent `Slot` and `Epoch` values in `AttesterSlashing` and `ProposerSlashing` objects. `BigInt` is too slow to be used in all `Slot` and `Epoch` cases, so we will carefully use `BigInt` just where necessary for consensus.
如何修補 CVE-2022-29219
要修補 CVE-2022-29219,請將受影響套件升級到下列已修補版本。
- —升級至 0.36.0 或更新版本
CVE-2022-29219 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 0.36.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |