Vulnerability in Xen

CVE-2015-4163

GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.

EPSS: 0.004 (36.0th percentile) — read the EPSS interpretation.

Affected products

  • Xen — versions 4.2.0, 4.2.1, 4.2.2
  • N/a — versions n/a

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2015-4163?
CVE-2015-4163 is a vulnerability in Xen. Published 2015-06-15.
Is CVE-2015-4163 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.