GHSA-23qp-3c2m-xx6w

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Source
https://github.com/advisories/GHSA-23qp-3c2m-xx6w
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/02/GHSA-23qp-3c2m-xx6w/GHSA-23qp-3c2m-xx6w.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-23qp-3c2m-xx6w
Aliases
Published
2025-02-04T18:54:13Z
Modified
2025-02-06T18:03:00Z
Summary
wasmvm: Malicious smart contract can crash the chain
Details

CWA-2025-001

Severity

Medium (Moderate + Likely)[^1]

Affected versions:

  • wasmvm >= 2.2.0, < 2.2.2
  • wasmvm >= 2.1.0, < 2.1.5
  • wasmvm >= 2.0.0, < 2.0.6
  • wasmvm < 1.5.8

Patched versions:

  • wasmvm 1.5.8, 2.0.6, 2.1.5, 2.2.2

Description of the bug

The vulnerability can be used to crash the chain. The underlying bug that causes this is present on both permissioned and premissionless chains, but it can only be triggered reliably with a malicious contract, so permissioned chains are much less likely to be affected.

(We'll add more detail once chains had a chance to upgrade.)

Patch

  • 1.5: https://github.com/CosmWasm/wasmvm/commit/1151bc6df7d02d1889b8da37cf8510eaf4198eea
  • 2.0: https://github.com/CosmWasm/wasmvm/commit/d4ff2adee44e6b9f7415a5dfbb3de745ab9b7678
  • 2.1: https://github.com/CosmWasm/wasmvm/commit/8d44a286fabc793a2fba93752e58cd0fd5b88a2d
  • 2.2: https://github.com/CosmWasm/wasmvm/commit/0aefa4c378457aeb3c07e7975b875be38872c56d

Applying the patch

The patch will be shipped in releases of wasmvm. You can update more or less as follows:

  1. Check the current wasmvm version: go list -m github.com/CosmWasm/wasmvm
  2. Bump the github.com/CosmWasm/wasmvm dependency in your go.mod to one of the patched version depending on which minor version you are on; go mod tidy; commit.
  3. If you use the static libraries libwasmvm_muslc.aarch64.a/libwasmvm_muslc.x86_64.a, update them accordingly.
  4. Check the updated wasmvm version: go list -m github.com/CosmWasm/wasmvm and ensure you see 1.5.8, 2.0.6, 2.1.5 or 2.2.2.
  5. Follow your regular practices to deploy chain upgrades.

While the fix for this issue is not consensus breaking, the patch contains another consensus breaking fix and requires a coordinated upgrade.

Acknowledgement

This issue was found by meadow101 who reported it to the Cosmos Bug Bounty Program on HackerOne.

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.

Timeline

  • 2024-11-25: Confio receives a report through the Cosmos bug bounty program maintained by Amulet.
  • 2024-11-28: Confio security contributors confirm the report.
  • 2024-11-28: Confio developed the patch internally.
  • 2025-02-04: Patch gets released.
Database specific
{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-476"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-04T18:54:13Z"
}
References

Affected packages

Go / github.com/CosmWasm/wasmvm

Package

Name
github.com/CosmWasm/wasmvm
View open source insights on deps.dev
Purl
pkg:golang/github.com/CosmWasm/wasmvm

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.8

Go / github.com/CosmWasm/wasmvm/v2

Package

Name
github.com/CosmWasm/wasmvm/v2
View open source insights on deps.dev
Purl
pkg:golang/github.com/CosmWasm/wasmvm/v2

Affected ranges

Type
SEMVER
Events
Introduced
2.0.0
Fixed
2.0.6

Go / github.com/CosmWasm/wasmvm/v2

Package

Name
github.com/CosmWasm/wasmvm/v2
View open source insights on deps.dev
Purl
pkg:golang/github.com/CosmWasm/wasmvm/v2

Affected ranges

Type
SEMVER
Events
Introduced
2.1.0
Fixed
2.1.5

Go / github.com/CosmWasm/wasmvm/v2

Package

Name
github.com/CosmWasm/wasmvm/v2
View open source insights on deps.dev
Purl
pkg:golang/github.com/CosmWasm/wasmvm/v2

Affected ranges

Type
SEMVER
Events
Introduced
2.2.0
Fixed
2.2.2