🛡️ CVE-2023-30612
🟡 CVSS 4.0 — Medium ✅ No Known Exploit CWE-306 NVD
4.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity MEDIUM
CVSS Score 4.0
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
CWE CWE-306
Public Exploit ✅ No
Source NVD
Published 2023-04-19
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
cloud-hypervisor — —

References

Similar Threats

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