Vulnerability in wasmtime (CVE-2024-47763)
Summary
vulnerability in wasmtime (CVE-2024-47763). Risk of unauthorized operations or information disclosure. Exploitable via ``return_call``. Mitigation: upgrade to `21.0.2` or later.
AI summary snake-internal / snake-material-v2
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'wasmtime' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `wasmtime` を grep し、稼働しているサービス・バージョンを把握する。
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5Apply temporary workaround mitigate
The main workaround for this issue is to disable tail support for tail calls in Wasmtime, for example with [`Config::wasm_tail_call(false)`](https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_tail_call).パッチが適用されるまでの応急処置として、The main workaround for this issue is to disable tail support for tail calls in Wasmtime, for example with [`Config::wasm_tail_call(false)`](https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_tail_call). を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade wasmtime to 21.0.2ステージング環境で 21.0.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
References
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47763.json
- advisory https://nvd.nist.gov/vuln/detail/CVE-2024-47763
- package https://github.com/bytecodealliance/wasmtime
- package https://crates.io/crates/wasmtime
- web https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_tail_call
- web https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-q8hx-mm92-4wvg
- web https://github.com/bytecodealliance/wasmtime/pull/8540
- web https://github.com/bytecodealliance/wasmtime/pull/8682
- web https://github.com/WebAssembly/proposals
- web https://github.com/webassembly/tail-call
- web https://github.com/bytecodealliance/wasmtime/pull/6774
- web https://github.com/bytecodealliance/wasmtime/commit/0ebe54d05f0e1f6c64b7c8bb48c9e9f6c95cacba
- web https://rustsec.org/advisories/RUSTSEC-2024-0440.html
- web https://github.com/pypa/advisory-database/tree/main/vulns/wasmtime-bin/PYSEC-2024-312.yaml
- web https://github.com/advisories/GHSA-q8hx-mm92-4wvg