Use After Free in Xen

CVE-2017-17045

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service (BUG and host OS crash) by leveraging the mishandling of Populate on Demand (PoD) Physical-to-Machine (P2M) errors.

Vulnerability class: Use-After-Free

EPSS: 0.004 (35.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

  • Xen
  • 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 (mailing-list, x_refsource_MLIST)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (mailing-list, x_refsource_MLIST)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Mitigation, Issue Tracking, Vendor Advisory)
  • cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
  • cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-17045?
CVE-2017-17045 is a high-severity vulnerability in Xen, classified under Use After Free. CVSS score: 8.8/10. Published 2017-11-28.
How severe is CVE-2017-17045?
High severity. CVSS v3 base score is 8.8 out of 10.