CVE Catalog
CVE-2016-9386
HighSummary
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving 'unexpected' base/limit values.
Risk Assessment
The organization may be exposed to unauthorized access by local users, potentially leading to privilege escalation.
Recommendation
It is recommended to update to the latest version of Xen to patch this vulnerability and to monitor system access for unauthorized activities.
Other vulnerabilities in Xen x86 emulator
Original NVD description (English source)
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.