GitHub Advisoryadvisory · Go
GHSA-vmg2-r3xv-r3xf Simulation of Wasmd message can cause crashing
LOW
Official page ↗
- Ecosystem
- Go
- Packages
- github.com/CosmWasm/wasmd
- Severity
- Low
- Reviewed
- 2024-12-10
Affected packages
• Go github.com/CosmWasm/wasmd: < 0.53.2 → fixed in 0.53.2
Description
CWA-2024-009
Severity
Low (Marginal + Likely)[^1]
Affected versions:
• wasmd query wasm libwasmvm-version`. It must show 2.1.4.
The patch is not consensus breaking _if you are already using wasmvm 2.1.3_.
If you are instead using wasmvm 2.1.2, then upgrading to 2.1.4 includes the consensus breaking changes of 2.1.3.
DIY Patch
If you are unable to upgrade to the latest version, you can backport the wasmd patch to your version. The patch is available at Wasmd 0.53.2.
However, if you are on an older version of wasmd, you will also be using a different version of wasmvm. We provide the required patches for wasmvm in versions 2.1.4, 2.0.5, 1.5.6.
To upgrade using this method:
1. Check the current wasmvm version: `go list -m github.com/CosmWasm/wasmvm` and upgrade
to the closest patched version.
2. Bump the github.com/CosmWasm/wasmvm dependency in your go.mod to the closest compatible patched version (either 2.1.4, 2.0.5 or 1.5.6); go mod tidy; commit.
3. Apply the patch linked above to your version of wasmd.
4. If you use the static libraries `libwasmvm_muslc.aarch64.a`/`libwasmvm_muslc.x86_64.a`, make sure that you use the same version as your wasmvm version.
5. Follow your regular practices to deploy chain upgrades.
To double check if the correct library version is loaded at runtime, use this query:
` query wasm libwasmvm-version`. It must show 2.1.4, 2.0.5 or 1.5.6 and must be the same as the wasmvm version in your go.sum.
The patch is not consensus breaking as long as you were using the previous patch version of wasmvm before.
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 .
Timeline
• 2024-09-25: Confio receives a report through the Cosmos bug bounty program maintained by Amulet.
• 2024-09-30: Confio security contributors confirm the report.
• 2024-11-21: Confio developed the patch internally.
• 2024-12-06: Patch release is pre-announced through notification lists.
• 2024-12-10: Patch released.
[^1]: following Amulet's Severity Classification Framework ACMv1: https://github.com/interchainio/security/blob/e0227a1fb4059144aab4f6003eeee7f09912db3a/resources/CLASSIFICATION_MATRIX.md