CVE-2020-35503
Fixed in a distro release EPSS <1%
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.
Products: qemu, fedoraproject fedora
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | qemu | no fix |
| Debian 13 | qemu | no fix |
| Debian 14 | qemu | no fix |
| SUSE Enterprise Storage 6 | qemu | 3.1.1.1-80.40.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | qemu | 3.1.1.1-80.40.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | qemu | 3.1.1.1-80.40.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | qemu | 2.11.2-70.59.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | qemu | 2.11.2-70.59.1 |
| SUSE Linux Enterprise Micro 5.0 | qemu | 4.2.1-11.28.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | qemu | 4.2.1-11.28.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | qemu | 5.2.0-103.2 |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | qemu | 4.2.1-11.28.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | qemu | 5.2.0-103.2 |
| SUSE Linux Enterprise Server 12 SP2-BCL | qemu | 2.6.2-41.73.1 |
| SUSE Linux Enterprise Server 12 SP4-LTSS | qemu | 2.11.2-5.40.2 |
| SUSE Linux Enterprise Server 12 SP5 | qemu | 3.1.1.1-57.2 |
| SUSE Linux Enterprise Server 15 SP1-BCL | qemu | 3.1.1.1-80.40.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | qemu | 3.1.1.1-80.40.1 |
| SUSE Linux Enterprise Server 15-LTSS | qemu | 2.11.2-70.59.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | qemu | 2.11.2-5.40.2 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | qemu | 3.1.1.1-57.2 |
| SUSE Linux Enterprise Server for SAP Applications 15 | qemu | 2.11.2-70.59.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | qemu | 3.1.1.1-80.40.1 |
| SUSE OpenStack Cloud 9 | qemu | 2.11.2-5.40.2 |
| SUSE OpenStack Cloud Crowbar 9 | qemu | 2.11.2-5.40.2 |
| Ubuntu 22.04 LTS | qemu | no fix |
| Ubuntu 24.04 LTS | qemu | no fix |
| Ubuntu 25.10 | qemu | no fix |
| Ubuntu 26.04 LTS | qemu | no fix |
| Ubuntu 26.04 LTS | qemu-hwe | no fix |
| Ubuntu 26.10 | qemu | no fix |
| Ubuntu 26.10 | qemu-hwe | no fix |
| Ubuntu Pro 14.04 LTS | qemu | no fix |
| Ubuntu Pro 16.04 LTS | qemu | no fix |
| Ubuntu Pro 18.04 LTS | qemu | no fix |
| Ubuntu Pro 20.04 LTS | qemu | no fix |
| openSUSE Leap 15.2 | qemu | 4.2.1-lp152.9.20.1 |
| openSUSE Leap 15.2 | qemu-linux-user | 4.2.1-lp152.9.20.1 |
| openSUSE Leap 15.2 | qemu-testsuite | 4.2.1-lp152.9.20.1 |
| openSUSE Leap 15.3 | qemu | 4.2.1-11.28.1 |
| openSUSE Leap 15.3 | qemu | 5.2.0-103.2 |
| openSUSE Leap 15.3 | qemu | 3.1.1.1-80.40.1 |
| openSUSE Tumbleweed | qemu | 6.2.0-41.1 |