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Security Advisories: GSA_kwCzR0hTQS0yNTU3LXg5bWctNzZ3OM4AA5Zz

ASA-2024-002: Default `PrepareProposalHandler` may produce invalid proposals when used with default `SenderNonceMempool`

Component: Cosmos SDK
Criticality: Medium
Affected Versions: Cosmos SDK versions <= 0.50.3; <= 0.47.8
Affected Users: Chain developers, Validator and Node operators
Impact: Denial of Service

Summary

When using the default PrepareProposalHandler and the default SenderNonceMempool, an issue was identified which may allow invalid blocks to be proposed when a single sender includes multiple transactions with non-sequential sequence numbers in certain conditions. If this state is reached, it can lead to a reduction in block production for a network.

Next Steps for Impacted Parties

If you are a chain developer on an affected version of the Cosmos SDK, it is advised to update to the latest available version of the Cosmos SDK for your project. Once a patched version is available, it is recommended that network operators upgrade.

A Github Security Advisory for this issue is available in the Cosmos-SDK repository. For more information about Cosmos SDK, see https://docs.cosmos.network/.

This issue was found by KonradStaniec, gitferry, SebastianElvis, and vitsalis who reported it to the Cosmos Bug Bounty Program on HackerOne on January 16, 2024. If you believe you have found a bug in the Interchain Stack or would like to contribute to the program by reporting a bug, please see https://hackerone.com/cosmos.

Permalink: https://github.com/advisories/GHSA-2557-x9mg-76w8
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS0yNTU3LXg5bWctNzZ3OM4AA5Zz
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 10 months ago
Updated: 6 months ago

CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Identifiers: GHSA-2557-x9mg-76w8
References:

Repository: https://github.com/cosmos/cosmos-sdk
Blast Radius: 17.8

Affected Packages

go:github.com/cosmos/cosmos-sdk

Dependent packages: 4,393
Dependent repositories: 2,329
Downloads:
Affected Version Ranges: <= 0.47.8, >= 0.50.0, <= 0.50.3
Fixed in: 0.47.9, 0.50.4
All affected versions: 0.0.2, 0.0.3, 0.0.4, 0.2.0, 0.3.0, 0.3.1, 0.4.0, 0.4.1, 0.5.0, 0.5.1, 0.5.2, 0.6.0, 0.6.1, 0.6.2, 0.7.0, 0.7.1, 0.8.0, 0.9.0, 0.10.0, 0.11.0, 0.12.0, 0.13.0, 0.13.1, 0.14.0, 0.14.1, 0.15.0, 0.15.1, 0.16.0, 0.17.0, 0.17.1, 0.17.2, 0.17.3, 0.17.4, 0.17.5, 0.18.0, 0.19.0, 0.20.0, 0.21.0, 0.21.1, 0.22.0, 0.23.0, 0.23.1, 0.24.0, 0.24.1, 0.24.2, 0.25.0, 0.26.0, 0.27.0, 0.27.1, 0.28.0, 0.28.1, 0.29.0, 0.29.1, 0.30.0, 0.31.0, 0.31.1, 0.31.2, 0.32.0, 0.33.0, 0.33.1, 0.33.2, 0.34.0, 0.34.1, 0.34.2, 0.34.3, 0.34.4, 0.34.5, 0.34.6, 0.34.7, 0.34.8, 0.34.9, 0.34.10, 0.35.0, 0.36.0, 0.37.0, 0.37.1, 0.37.2, 0.37.3, 0.37.4, 0.37.5, 0.37.6, 0.37.7, 0.37.8, 0.37.9, 0.37.10, 0.37.11, 0.37.12, 0.37.13, 0.37.14, 0.37.15, 0.38.0, 0.38.1, 0.38.2, 0.38.3, 0.38.4, 0.38.5, 0.39.0, 0.39.1, 0.39.2, 0.39.3, 0.40.0, 0.40.1, 0.41.0, 0.41.1, 0.41.2, 0.41.3, 0.41.4, 0.42.0, 0.42.1, 0.42.2, 0.42.3, 0.42.4, 0.42.5, 0.42.6, 0.42.7, 0.42.8, 0.42.9, 0.42.10, 0.42.11, 0.43.0, 0.44.0, 0.44.1, 0.44.2, 0.44.3, 0.44.4, 0.44.5, 0.44.6, 0.44.7, 0.44.8, 0.45.0, 0.45.1, 0.45.2, 0.45.3, 0.45.4, 0.45.5, 0.45.6, 0.45.7, 0.45.8, 0.45.9, 0.45.10, 0.45.11, 0.45.12, 0.45.13, 0.45.14, 0.45.15, 0.45.16, 0.46.0, 0.46.1, 0.46.2, 0.46.3, 0.46.4, 0.46.5, 0.46.6, 0.46.7, 0.46.8, 0.46.9, 0.46.10, 0.46.11, 0.46.12, 0.46.13, 0.46.14, 0.46.15, 0.46.16, 0.47.0, 0.47.1, 0.47.2, 0.47.3, 0.47.4, 0.47.5, 0.47.6, 0.47.7, 0.47.8, 0.50.0, 0.50.1, 0.50.2, 0.50.3
All unaffected versions: 0.47.9, 0.47.10, 0.47.11, 0.47.12, 0.47.13, 0.47.14, 0.50.4, 0.50.5, 0.50.6, 0.50.7, 0.50.8, 0.50.9, 0.50.10