Stack-based buffer overflow in xhyve
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
This vulnerability allows local attackers to escalate privileges on affected installations of xhyve. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the e1000 virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-15056.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| xhyve | xhyve | 0.2.0-145-g83516a | — | No fix listed | CNA |
- xhyve Vendorxhyve Affected 0.2.0-145-g83516a Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xhyve_project:xhyve:0.2.0:*:*:*:*:*:*:* | 0.2.0 | Vulnerable | Xhyve Project |
- cpe:2.3:a:xhyve_project:xhyve:0.2.0:*:*:*:*:*:*:* Versions 0.2.0 Vulnerable ·Xhyve Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-35867
- 2026-10-03 Alias added: GHSA-hpw9-grqm-8q7c
References
More Xhyve Project Xhyve vulnerabilities
- TI-2022-16934 xhyve commit dfbe09b was discovered to contain a stack buffer overflow via the component pci_vtrnd_notify(). CVSS 3.1CRITICAL 9.8
- TI-2022-16935 xhyve commit dfbe09b was discovered to contain a NULL pointer dereference via the… CVSS 3.1MEDIUM 6.5
- TI-2022-16933 xhyve commit dfbe09b was discovered to contain a NULL pointer dereference via the… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2022-35867 · CVE Program
- CVE-2022-35867 · NVD
- FIRST EPSS
- GHSA-hpw9-grqm-8q7c · GitHub Advisory Database · CC BY 4.0
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