CVE-2018-19961

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
31/100
CVSS Score
7.8 HIGH
v3.0 (nvd)
EPSS Score
0.18% 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 on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.

CVSS Metrics

  • v3.0•HIGH•Score: 7.8CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.18%• Percentile: 39%

Techniques & Countermeasures

  • CWE-459•Incomplete Cleanup

    The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

Affected Systems

  • citrix•xenserver

    7.0 | 7.1:cu1 | 7.5 | 7.6

  • debian•debian_linux

    9.0

  • xen•xen

    ≤ 4.11.1

References (7)