Improper input validation in Xen

CVE-2019-17348

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service because of an incompatibility between Process Context Identifiers (PCID) and shadow-pagetable switching.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (27.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
  • cve@mitre.org (Patch, x_refsource_MISC, Mitigation, Vendor Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
  • cve@mitre.org (mailing-list, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-17348?
CVE-2019-17348 is a medium-severity vulnerability in Xen, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2019-10-08.
How severe is CVE-2019-17348?
Medium severity. CVSS v3 base score is 6.5 out of 10.