Vulnerability CVE-2020-35503: Information
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.
Severity: MEDIUM (6.0) Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| qemu | sisyphus | 6.1.0-alt1 | 8.2.4-alt1 | ALT-PU-2021-2713-1 | 284381 | Fixed |
| qemu | sisyphus_e2k | 7.2.0-alt3.E2K.3 | 7.2.0-alt3.E2K.4 | ALT-PU-2024-1953-1 | - | Fixed |
| qemu | p10 | 6.1.0-alt2 | 8.2.2-alt0.p10.1 | ALT-PU-2021-3363-1 | 289854 | Fixed |
| qemu | p10_e2k | 7.2.0-alt3.E2K.0 | 7.2.0-alt3.E2K.3 | ALT-PU-2023-6766-1 | - | Fixed |
| qemu | c10f1 | 6.1.0-alt2 | 8.2.2-alt0.p10.1 | ALT-PU-2021-3363-1 | 289854 | Fixed |
| qemu | p11 | 6.1.0-alt1 | 8.2.3-alt1 | ALT-PU-2021-2713-1 | 284381 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1910346 |
|
| https://security.netapp.com/advisory/ntap-20210720-0008/ |
|