{"id":"GHSA-x5vx-95h7-rv4p","aliases":["GO-2025-3476"],"url":"https://o3.security/vulnerability/GHSA-x5vx-95h7-rv4p","summary":"Cosmos SDK: Groups module can halt chain when handling a malicious proposal","details":"Name: ASA-2025-003: Groups module can halt chain when handling a malicious proposal\nComponent: CosmosSDK\nCriticality: High (Considerable Impact; Likely Likelihood per [ACMv1.2](https://github.com/interchainio/security/blob/main/resources/CLASSIFICATION_MATRIX.md))\nAffected versions: <= v0.47.15, <= 0.50.11\nAffected users: Validators, Full nodes, Users on chains that utilize the groups module\n\n### Description\n\nAn issue was discovered in the groups module where a malicious proposal would result in a division by zero, and subsequently halt a chain due to the resulting error. Any user that can interact with the groups module can introduce this state.\n\n### Patches\n\nThe new Cosmos SDK release [v0.50.12](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.50.12) and [v0.47.16](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.16) fix this issue.\n\n### Workarounds\n\nThere are no known workarounds for this issue.  It is advised that chains apply the update.\n\n### Timeline\n\n* February 9, 2025, 5:18pm PST: Issue reported to the Cosmos Bug Bounty program\n* February 9, 2025, 8:12am PST: Issue triaged by Amulet on-call, and distributed to Core team\n* February 9, 2025, 12:25pm PST: Core team completes validation of issue\n* February 18, 2025, 8:00am PST / 17:00 CET: Pre-notification delivered\n* February 20, 2025, 8:00am PST / 17:00 CET: Patch made available\n\nThis issue was reported to the Cosmos Bug Bounty Program by [dongsam](https://github.com/dongsam) on HackerOne on February 9, 2025. 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.\n\nIf you have questions about Interchain security efforts, please reach out to our official communication channel at [security@interchain.io](mailto:security@interchain.io). For more information about the Interchain Foundation’s engagement with Amulet, and to sign up for security notification emails, please see https://github.com/interchainio/security.  \n\nA Github Security Advisory for this issue is available in the Cosmos SDK [repository](https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-x5vx-95h7-rv4p).","published":"2025-02-20T20:18:25Z","modified":"2025-03-03T16:27:07.249528Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/cosmos/cosmos-sdk","fixedVersion":"0.47.16-ics-lsm"},{"ecosystem":"Go","name":"github.com/cosmos/cosmos-sdk","fixedVersion":"0.50.12"}],"fix":{"url":"https://github.com/cosmos/cosmos-sdk/commit/0a98b65b24900a0e608866c78f172cf8e4140aea","label":"cosmos/cosmos-sdk@0a98b65"},"references":[{"type":"WEB","url":"https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-x5vx-95h7-rv4p"},{"type":"WEB","url":"https://github.com/cosmos/cosmos-sdk/commit/0a98b65b24900a0e608866c78f172cf8e4140aea"},{"type":"PACKAGE","url":"https://github.com/cosmos/cosmos-sdk"},{"type":"WEB","url":"https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.16"},{"type":"WEB","url":"https://github.com/cosmos/cosmos-sdk/releases/tag/v0.50.12"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-03-03T16:27:07.249528Z"}}