DEBIAN-CVE-2020-27671

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2020-27671
Downstream
DSA-4804-1
Published: 22 Oct 2020, 21:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Oct 2020, 21:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

Description

An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•xen

    < 4.14.0+80-gd101b417b7-1 | < 4.14.0+80-gd101b417b7-1 | < 4.14.0+80-gd101b417b7-1 | < 4.14.0+80-gd101b417b7-1

References (1)