CVE-2018-19966

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 08 Dec 2018, 04:00
Last modified:05 Aug 2024, 11:51

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
v3.0 (nvd)
EPSS Score
0.12% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Dec 2018, 04:00
Published
Vulnerability first disclosed
05 Aug 2024, 11:51
Last Modified
Vulnerability information updated

Description

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.

CVSS Metrics

  • v3.0•HIGH•Score: 8.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.12%• Percentile: 31%

Techniques & Countermeasures

  • CWE-436•Interpretation Conflict

    Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

Affected Systems

  • debian•debian_linux

    9.0

  • xen•xen

    ≥ 4.11.0, ≤ 4.11.1

References (6)