CVE-2021-3416
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- CVE-2021-3416
CVE Details
| Release Date: | 2021-03-18 |
Description
A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.
See more information about CVE-2021-3416 from MITRE CVE dictionary and NIST NVD
CVSS v3.0 metrics
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 6 | Base Metrics: | AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
| Access Vector: | Local network | Attack Complexity: | Low |
| Privileges Required: | High | User Interaction: | None |
| Scope: | Changed | Confidentiality Impact: | None |
| Integrity Impact: | None | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 7 (qemu) | ELSA-2022-9123 | 2022-02-05 |
| Oracle Linux version 8 (hivex) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (hivex) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libguestfs) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libiscsi) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libnbd) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libvirt) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (nbdkit) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (netcf) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (netcf) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (seabios) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (seabios) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (sgabios) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-9172 | 2022-02-25 |
| Oracle Linux version 8 (supermin) | ELSA-2021-3061 | 2021-08-12 |
| Oracle Linux version 8 (supermin) | ELSA-2022-9172 | 2022-02-25 |
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