GHSA-mc22-5q92-8v85 · 深刻度: medium · エコシステム: rust — Memory Safety Issue when using patch or merge on state and assign the result back to state
Tremor is an event processing system for unstructured data. A vulnerability exists between versions 0.7.2 and 0.11.6. This vulnerability is a memory safety Issue when using `patch` or `merge` on `state` and assign the result back to `state`. In this case, affected versions of Tremor and the tremor-script crate maintains references to memory that might have been freed already. And these memory regions can be accessed by retrieving the `state`, e.g. send it over TCP or HTTP. This requires the Tremor server (or any other program using tremor-script) to execute a tremor-script script that uses the mentioned language construct. The issue has been patched in version 0.11.6 by removing the optimization and always cloning the target expression of a Merge or Patch. If an upgrade is not possible, a possible workaround is to avoid the optimization by introducing a temporary variable and not immediately reassigning to `state`.
総合評価: CVE-2021-39228 は悪用リスクが高い(65.1/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 1.31%、67 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.55% | 1.31% | +0.75% |
| 2 | 2025-03-30 | 0.79% | 0.55% | -0.24% |
| 3 | 2025-03-29 | — | 0.79% | — |
EPSS の全履歴 (全 11 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
3.9 | 2.5 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
GHSA-mc22-5q92-8v85 · 深刻度: medium · エコシステム: rust — Memory Safety Issue when using patch or merge on state and assign the result back to state
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linuxfoundation | tremor | >= 0.7.2, < 0.11.6 | cpe:2.3:a:linuxfoundation:tremor:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/tremor-rs/tremor-runtime/commit/1a2efcdbe68e5e7fd0a05836ac32d2cde78a0b2e | Patch Third Party Advisory |
| https://github.com/tremor-rs/tremor-runtime/pull/1217 | Exploit Patch Third Party Advisory |
| https://github.com/tremor-rs/tremor-runtime/releases/tag/v0.11.6 | Release Notes Third Party Advisory |
| https://github.com/tremor-rs/tremor-runtime/security/advisories/GHSA-mc22-5q92-8v85 | Mitigation Third Party Advisory |