Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
"CWE-476: NULL Pointer Dereference"
CVSS Severity (version 2.0):
Impact Subscore: 6.9
Exploitability Subscore: 4.4
CVSS Version 2 Metrics:
Access Vector: Local network exploitable
Access Complexity: Medium
Authentication: Required to exploit
Impact Type: Allows disruption of service
References to Advisories, Solutions, and Tools
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[oss-security] 20130830 kernel: CVE-2011-2482/2519
Patch Information; Exploit
Vulnerable software and versions