DEBIAN-CVE-2015-8550

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2015-8550
Published: 14 Apr 2016, 14:59
Last modified:28 Apr 2026, 20:14

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
8.2 HIGH
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

14 Apr 2016, 14:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:14
Last Modified
Vulnerability information updated

Description

Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.

CVSS Metrics

  • v3.0•HIGH•Score: 8.2CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 4.3.3-3 | < 4.3.3-3 | < 4.3.3-3 | < 4.3.3-3

  • debian•qemu

    < 1:2.5+dfsg-2 | < 1:2.5+dfsg-2 | < 1:2.5+dfsg-2 | < 1:2.5+dfsg-2

  • debian•xen

    < 4.8.0~rc3-1 | < 4.8.0~rc3-1 | < 4.8.0~rc3-1 | < 4.8.0~rc3-1

References (1)