vulnerability / NVI-00013998 / Revision 1
CometBFT Vote Extensions: Panic when receiving a Pre-commit with an invalid data
GitHub lists this reviewed advisory for github.com/cometbft/cometbft. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
github.com/cometbft/cometbft
source listed>= 0.38.0, < 0.38.15
Name: ASA-2024-011: Vote Extensions: Panic when receiving a Pre-commit with an invalid data Component: CometBFT Criticality: High (Considerable Impact, and Possible Likelihood per ACMv1.2) Affected versions: `>= 0.38.x`, unreleased `v1.x` and `main` development branches Affected users: Chain Builders + Maintainers, Validators ### Impact A CometBFT node running in a network with [vote extensions][abci-spec] enabled could produce an invalid `Vote` message and send it to its peers. The invalid field of the `Vote` message is the `ValidatorIndex`, which identifies the sender in the `ValidatorSet` running that height of consensus. This field is ordinarily verified in the processing of `Vote` messages, but it turns out that in the case of a `Vote` message of type `Precommit` and for a non-`nil` `BlockID`, a logic was introduced before this ordinary verification to handle the attached vote extension. This introduced logic (not present in releases prior to `0.38.x`) does not d
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
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04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
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- GHSA-p7mv-53f2-4cwj ↗
GitHub Advisory Database · vendor advisory
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Public revision history
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- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.