Cloud hypervisor is a Virtual Machine Monitor for Cloud workloads. This vulnerability allows users to close arbitrary open file descriptors in the Cloud Hypervisor process via sending malicious HTTP request through the HTTP API socket. As a result, the Cloud Hypervisor process can be easily crashed, causing Deny-of-Service (DoS). This can also be a potential Use-After-Free (UAF) vulnerability. Users require to have the write access to the API socket file to trigger this vulnerability. Impacted versions of Cloud Hypervisor include upstream main branch, v31.0, and v30.0. The vulnerability was initially detected by our `http_api_fuzzer` via oss-fuzz. This issue has been addressed in versions 30.1 and 31.1. Users unable to upgrade may mitigate this issue by ensuring the write access to the API socket file is granted to trusted users only.
総合評価: CVE-2023-30612 は低リスク(25.8/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.36%、28 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 | 0.23% | 0.36% | +0.13% |
| 2 | 2026-05-02 | 0.34% | 0.23% | -0.11% |
| 3 | 2026-04-20 | — | 0.34% | — |
EPSS の全履歴 (全 12 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 |
|---|---|---|---|---|---|---|
| 4.0 | 3.1 | MEDIUM |
|
0.6 | 3.4 | [email protected] |
| 4.9 | 3.1 | MEDIUM |
|
1.2 | 3.6 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| cloudhypervisor | cloud_hypervisor | 30.0 | cpe:2.3:a:cloudhypervisor:cloud_hypervisor:30.0:*:*:*:*:rust:*:* |
| cloudhypervisor | cloud_hypervisor | 31.1 | cpe:2.3:a:cloudhypervisor:cloud_hypervisor:31.1:*:*:*:*:rust:*:* |
| URL | タグ |
|---|---|
| https://github.com/cloud-hypervisor/cloud-hypervisor/pull/5350 | Patch |
| https://github.com/cloud-hypervisor/cloud-hypervisor/pull/5373 | Patch |
| https://github.com/cloud-hypervisor/cloud-hypervisor/security/advisories/GHSA-g6mw-f26h-4jgp | Patch Vendor Advisory |
| https://oss-fuzz.com/testcase-detail/5260873569796096 | Permissions Required |
| https://oss-fuzz.com/testcase-detail/5426283514560512 | Permissions Required |