CVE-2016-9385
UnknownEPSS 0.43%
Last modified
CVE-2016-9385 is a vulnerability of currently unknown severity. The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 4.4.0 |
| Xen | Xen | 4.4.1 |
| Xen | Xen | 4.4.2 |
| Xen | Xen | 4.4.3 |
| Xen | Xen | 4.4.4 |
| Xen | Xen | 4.5.0 |
| Xen | Xen | 4.5.1 |
| Xen | Xen | 4.5.2 |
| Xen | Xen | 4.5.3 |
| Xen | Xen | 4.5.5 |
| Xen | Xen | 4.6.0 |
| Xen | Xen | 4.6.1 |
| Xen | Xen | 4.6.3 |
| Xen | Xen | 4.6.4 |
| Xen | Xen | 4.7.0 |
| Xen | Xen | 4.7.1 |
| Citrix | Xenserver | 6.0.2 |
| Citrix | Xenserver | 6.2.0 |
| Citrix | Xenserver | 6.5 |
| Citrix | Xenserver | 7.0 |
References
- http://www.securityfocus.com/bid/94472Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037342Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-193.htmlPatch, Vendor Advisory
- https://support.citrix.com/article/CTX218775Patch, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/94472Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037342Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-193.htmlPatch, Vendor Advisory
- https://support.citrix.com/article/CTX218775Patch, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-9385?
The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.
How severe is CVE-2016-9385?
Severity scoring for CVE-2016-9385 is pending analysis. The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9385?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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