Vulnerability Description
Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.6.0 |
Related Weaknesses (CWE)
References
- http://www.debian.org/security/2016/dsa-3633
- http://www.securityfocus.com/bid/78920
- http://www.securitytracker.com/id/1034390
- http://xenbits.xen.org/xsa/advisory-158.htmlVendor Advisory
- http://www.debian.org/security/2016/dsa-3633
- http://www.securityfocus.com/bid/78920
- http://www.securitytracker.com/id/1034390
- http://xenbits.xen.org/xsa/advisory-158.htmlVendor Advisory
FAQ
What is CVE-2015-8338?
CVE-2015-8338 is a vulnerability with a CVSS score of 7.2 (HIGH). Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_mem...
How severe is CVE-2015-8338?
CVE-2015-8338 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-8338?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.