NULL pointer dereference in Citrix Xenserver

CVE-2016-10025

VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.

EPSS: 0.005 (36.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Citrix Xenserver — versions 6.0.2, 6.2.0, 6.5
  • Xen — versions 4.6.0, 4.6.1, 4.6.3
  • N/a — versions n/a

Weakness classification (CWE)

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2016-10025?
CVE-2016-10025 is a medium-severity vulnerability in Citrix Xenserver, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2017-01-26.
How severe is CVE-2016-10025?
Medium severity. CVSS v3 base score is 5.5 out of 10.