CVE-2023-30612
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.
Does this matter?
Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306, CWE-416
- Affected
- cloudhypervisor/cloud hypervisor
- Source
- security-advisories@github.com
References
- https://github.com/cloud-hypervisor/cloud-hypervisor/pull/5350Patch
- https://github.com/cloud-hypervisor/cloud-hypervisor/pull/5373Patch
- https://github.com/cloud-hypervisor/cloud-hypervisor/security/advisories/GHSA-g6mw-f26h-4jgpPatch, Vendor Advisory
- https://oss-fuzz.com/testcase-detail/5260873569796096Permissions Required
- https://oss-fuzz.com/testcase-detail/5426283514560512Permissions Required
- https://github.com/cloud-hypervisor/cloud-hypervisor/pull/5350Patch
- https://github.com/cloud-hypervisor/cloud-hypervisor/pull/5373Patch
- https://github.com/cloud-hypervisor/cloud-hypervisor/security/advisories/GHSA-g6mw-f26h-4jgpPatch, Vendor Advisory
- https://oss-fuzz.com/testcase-detail/5260873569796096Permissions Required
- https://oss-fuzz.com/testcase-detail/5426283514560512Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.