CVEvulnerability

CVE-2020-35503

6.0 MEDIUM Published 2021-06-02 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-02
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-476

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.

Affected configurations

• qemu qemu (<= 6.0.0) • fedoraproject fedora 33

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References