Vulnerability in Xen

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 consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

Affected products

  • Xen — versions 3.4.0, 3.4.1, 3.4.2
  • N/a — versions n/a

Weakness classification (CWE)

References