Vulnerability CVE-2020-10717: Information
Description
A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host.
Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:L/AC:L/PR:L/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 | 5.1.0-alt1 | 8.2.2-alt3 | ALT-PU-2020-2595-1 | 256281 | Fixed |
| qemu | sisyphus_e2k | 7.2.0-alt3.E2K.3 | 7.2.0-alt3.E2K.4 | ALT-PU-2024-1953-1 | - | Fixed |
| qemu | p10 | 5.1.0-alt1 | 8.2.2-alt0.p10.1 | ALT-PU-2020-2595-1 | 256281 | Fixed |
| qemu | p10_e2k | 7.2.0-alt3.E2K.0 | 7.2.0-alt3.E2K.3 | ALT-PU-2023-6766-1 | - | Fixed |
| qemu | c10f1 | 5.1.0-alt1 | 8.0.4-alt1.p10 | ALT-PU-2020-2595-1 | 256281 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717 |
|
| https://www.openwall.com/lists/oss-security/2020/05/04/1 |
|
| https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.html |
|
| https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.html |
|
| GLSA-202011-09 |
|