CVE-2016-3159
3.8 · LOWOverview
CVE-2016-3159 is a low-severity vulnerability affecting oracle vm_server. It was published on April 13, 2016 and has a CVSS 3.0 base score of 3.8 (LOW).
This vulnerability has a CVSS 3.0 base score of 3.8, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
Remediation
Check the references section for vendor advisories and patches from oracle. Update vm_server 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 |
|---|---|---|---|
| xen | xen | 4.3.0 | Affected |
References
Frequently Asked Questions
What is CVE-2016-3159?
CVE-2016-3159 is a low-severity vulnerability affecting oracle vm_server. It was published on April 13, 2016 and has a CVSS 3.0 base score of 3.8 (LOW).
How severe is CVE-2016-3159?
This vulnerability has a CVSS 3.0 base score of 3.8, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2016-3159?
Check the references section for vendor advisories and patches from oracle. Update vm_server 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-2016-3159?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-3159 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
AI agents map your attack surface to find vulnerabilities like this one.
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