CVE-2020-14339
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- CVE-2020-14339
CVE Details
| Release Date: | 2020-12-03 |
Description
A flaw was found in libvirt, where it leaked a file descriptor for /dev/mapper/control into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
See more information about CVE-2020-14339 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: | 8.8 | Base Metrics: | AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Access Vector: | Local network | Attack Complexity: | Low |
| Privileges Required: | Low | User Interaction: | None |
| Scope: | Changed | Confidentiality Impact: | High |
| Integrity Impact: | High | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (hivex) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libguestfs) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libiscsi) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libnbd) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libvirt) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (nbdkit) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (netcf) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (seabios) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (sgabios) | ELSA-2020-4676 | 2020-11-10 |
| Oracle Linux version 8 (supermin) | ELSA-2020-4676 | 2020-11-10 |
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