This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2020-35503 →
DEBIAN-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. This issue...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
qemu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
qemu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
qemu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org