DEBIAN-CVE-2020-27674

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2020-27674
Downstream
DSA-4804-1
Published: 22 Oct 2020, 21:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
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 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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)