UBUNTU-CVE-2018-7858

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2018-7858
Downstream
USN-3649-1
Published: 12 Mar 2018, 00:00
Last modified:04 Feb 2026, 02:34

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Mar 2018, 00:00
Published
Vulnerability first disclosed
04 Feb 2026, 02:34
Last Modified
Vulnerability information updated

Description

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•qemu

    < 1:2.11+dfsg-1ubuntu7.1

References (4)