DEBIAN-CVE-2020-35503

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2020-35503
Published: 02 Jun 2021, 14:15
Last modified:28 Apr 2026, 20:18

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Jun 2021, 14:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:18
Last Modified
Vulnerability information updated

Description

A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Affected Systems

  • debian•qemu

    all | all | all | all

References (1)