CVE-2016-9380
UnknownEPSS 0.42%
Last modified
CVE-2016-9380 is a vulnerability of currently unknown severity. The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
Description
The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | All versions |
| Citrix | Xenserver | 6.0.2 |
| Citrix | Xenserver | 6.2.0 |
| Citrix | Xenserver | 6.5 |
| Citrix | Xenserver | 7.0 |
References
- http://www.securityfocus.com/bid/94473Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037347Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-198.htmlPatch, Vendor Advisory
- http://xenbits.xen.org/xsa/xsa198.patchPatch, Vendor Advisory
- https://support.citrix.com/article/CTX218775Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94473Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037347Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-198.htmlPatch, Vendor Advisory
- http://xenbits.xen.org/xsa/xsa198.patchPatch, Vendor Advisory
- https://support.citrix.com/article/CTX218775Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-9380?
The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.
How severe is CVE-2016-9380?
Severity scoring for CVE-2016-9380 is pending analysis. The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9380?
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.
Related CVEs from 2016
- CVE-2016-9374In Wireshark 2.2.0 to 2.2.1 and 2.0.0 to 2.0.7, the AllJoyn …
- CVE-2016-9375In Wireshark 2.2.0 to 2.2.1 and 2.0.0 to 2.0.7, the DTN diss…
- CVE-2016-9376In Wireshark 2.2.0 to 2.2.1 and 2.0.0 to 2.0.7, the OpenFlow…
- CVE-2016-9377Xen 4.5.x through 4.7.x on AMD systems without the NRip feat…
- CVE-2016-9378Xen 4.5.x through 4.7.x on AMD systems without the NRip feat…
- CVE-2016-9379The pygrub boot loader emulator in Xen, when S-expression ou…
- CVE-2016-9381Race condition in QEMU in Xen allows local x86 HVM guest OS …7.5
- CVE-2016-9382Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 …
- CVE-2016-9383Xen, when running on a 64-bit hypervisor, allows local x86 g…
- CVE-2016-9384Xen 4.7 allows local guest OS users to obtain sensitive host…
- CVE-2016-9385The x86 segment base write emulation functionality in Xen 4.…
- CVE-2016-9386The x86 emulator in Xen does not properly treat x86 NULL seg…
Are you affected by CVE-2016-9380?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST