1. Home
  2. CVE Database
  3. CVE-2015-7970
MEDIUM · 4.9

CVE-2015-7970

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consu...

Vulnerability Description

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.

CVSS Score

4.9

MEDIUM

AV:L/AC:L/Au:N/C:N/I:N/A:C
Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE

Affected Products

VendorProductVersions
XenXen3.4.0

Related Weaknesses (CWE)

CWE-399

References

FAQ

What is CVE-2015-7970?

CVE-2015-7970 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consu...

How severe is CVE-2015-7970?

CVE-2015-7970 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2015-7970?

Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.