GHSA-gw5p-q8mj-p7gh · 深刻度： low · エコシステム： rust — Miscompilation of wasm `i64x2.shr_s` instruction with constant input on x86_64
Wasmtime is a standalone runtime for WebAssembly. Wasmtime versions from 10.0.0 to versions 10.02, 11.0.2, and 12.0.1 contain a miscompilation of the WebAssembly `i64x2.shr_s` instruction on x86_64 platforms when the shift amount is a constant value that is larger than 32. Only x86_64 is affected so all other targets are not affected by this. The miscompilation results in the instruction producing an incorrect result, namely the low 32-bits of the second lane of the vector are derived from the low 32-bits of the second lane of the input vector instead of the high 32-bits. The primary impact of this issue is that any WebAssembly program using the `i64x2.shr_s` with a constant shift amount larger than 32 may produce an incorrect result. This issue is not an escape from the WebAssembly sandbox. Execution of WebAssembly guest programs will still behave correctly with respect to memory sandboxing and isolation from the host. Wasmtime considers non-spec-compliant behavior as a security issue nonetheless. This issue was discovered through fuzzing of Wasmtime's code generator Cranelift. Wasmtime versions 10.0.2, 11.0.2, and 12.0.2 are all patched to no longer have this miscompilation. This issue only affects x86_64 hosts and the only workaround is to either scan for this pattern in wasm modules which is nontrivial or to disable the SIMD proposal for WebAssembly. Users prior to 10.0.0 are unaffected by this vulnerability.
総合評価: CVE-2023-41880 は低リスク（24.7/100）。CVSS 深刻度は低。悪用される可能性が高い（EPSS 0.60%、44 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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。
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 | 0.18% | 0.60% | +0.42% |
| 2 | 2025-11-21 | 0.53% | 0.18% | -0.35% |
| 3 | 2025-11-18 | — | 0.53% | — |
EPSS の全履歴 （全 9 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 |
|---|---|---|---|---|---|---|
| 2.2 | 3.1 | LOW |
|
0.7 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
GHSA-gw5p-q8mj-p7gh · 深刻度： low · エコシステム： rust — Miscompilation of wasm `i64x2.shr_s` instruction with constant input on x86_64
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-41880 not yet assigned priority: Debian including 1 source packages (rust-wasmtime), 3 status rows across 3 suites (forky, sid, trixie): resolved 3. | https://security-tracker.debian.org/tracker/CVE-2023-41880 |
ubuntu
|
medium | CVE-2023-41880 medium priority: Ubuntu including 1 source packages (rust-wasmtime), 6 status rows across 6 suites (focal, jammy, noble, oracular, plucky, upstream): not-affected 3, DNE 2, released 1. | https://ubuntu.com/security/CVE-2023-41880 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| bytecodealliance | wasmtime | >= 10.0.0, < 10.0.2 | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:x64:* |
| bytecodealliance | wasmtime | >= 11.0.0, < 11.0.2 | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:x64:* |
| bytecodealliance | wasmtime | >= 12.0.0, < 12.0.2 | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:x64:* |