CVE-2023-50711
5.7 · MEDIUMOverview
CVE-2023-50711 is a medium-severity vulnerability affecting rust-vmm vmm-sys-util. It was published on January 2, 2024 and has a CVSS 3.1 base score of 5.7 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
vmm-sys-util is a collection of modules that provides helpers and utilities used by multiple rust-vmm components. Starting in version 0.5.0 and prior to version 0.12.0, an issue in the `FamStructWrapper::deserialize` implementation provided by the crate for `vmm_sys_util::fam::FamStructWrapper` can lead to out of bounds memory accesses. The deserialization does not check that the length stored in the header matches the flexible array length. Mismatch in the lengths might allow out of bounds memory access through Rust-safe methods. The issue was corrected in version 0.12.0 by inserting a check that verifies the lengths of compared flexible arrays are equal for any deserialized header and aborting deserialization otherwise. Moreover, the API was changed so that header length can only be modified through Rust-unsafe code. This ensures that users cannot trigger out-of-bounds memory access from Rust-safe code.
Remediation
Check the references section for vendor advisories and patches from rust-vmm. Update vmm-sys-util to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| rust-vmm | vmm-sys-util | >= 0.5.0, < 0.12.0 | Affected |
References
Frequently Asked Questions
What is CVE-2023-50711?
CVE-2023-50711 is a medium-severity vulnerability affecting rust-vmm vmm-sys-util. It was published on January 2, 2024 and has a CVSS 3.1 base score of 5.7 (MEDIUM).
How severe is CVE-2023-50711?
This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-50711?
Check the references section for vendor advisories and patches from rust-vmm. Update vmm-sys-util to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-50711?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-50711 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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