SARA / Free Tools / CVE / CVE-2023-30612

CVE-2023-30612 — Cloud hypervisor is a Virtual Machine Monitor for Cloud workloads

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 ca

CVSS
4.0 MEDIUM
EPSS
0.07% (top 78.90%)
CWE
CWE-306
Published
2023-04-19T17:25:40.446Z
Last modified
2025-02-05T14:51:40.315Z
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
cloud-hypervisorcloudhypervisor — >= 30.0, < 30.1, >= 31.0, < 31.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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