common/spinlock.c in Xen 4.4.x and earlier does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability to CVE-2014-9066.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Xen | Xen | * | 4.4.1 (including) |
Xen | Ubuntu | devel | * |
Xen | Ubuntu | trusty | * |
Xen | Ubuntu | utopic | * |
Xen-3.3 | Ubuntu | upstream | * |