medium6.0
CVE-2020-35503
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.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Qemu | Qemu | through 6.0.0 |
| Fedoraproject | Fedora | Version 33 |