Vulnerability · Published Dec 3, 2020 · Assigned by redhat
CVE-2020-14339
High 8.8
In plain English
A high-severity security flaw in libvirt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)0.4%top 63.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | hivex-devel | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libguestfs-winsupport | 8.2-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libguestfs-winsupport | 8.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libnbd | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libnbd | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libnbd-devel | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libnbd-devel | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-admin | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-bash-completion | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-client | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-config-network | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-config-nwfilter | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-interface | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-network | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-nodedev | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-nwfilter | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-secret | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-core | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-disk | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-iscsi | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-iscsi-direct | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-logical | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-mpath | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-rbd | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-daemon-driver-storage-scsi | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-dbus | 1.3.0-2.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-dbus | 1.3.0-2.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-dbus | 1.3.0-2.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-devel | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-docs | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-libs | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | libvirt-nss | 6.0.0-28.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | nbdfuse | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | nbdfuse | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-bash-completion | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-basic-filters | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-basic-plugins | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-curl-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-devel | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-example-plugins | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-gzip-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-linuxdisk-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-python-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-server | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-ssh-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-vddk-plugin | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | nbdkit-xz-filter | 1.16.2-4.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | ocaml-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | ocaml-hivex-devel | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | ocaml-libguestfs | 1:1.40.2-25.module_el8.3.0+2048+e7a0a3ea.alma | ALSA-2020:4676 |
| AlmaLinux:8 | ocaml-libguestfs-devel | 1:1.40.2-25.module_el8.3.0+2048+e7a0a3ea.alma | ALSA-2020:4676 |
| AlmaLinux:8 | ocaml-libnbd | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | ocaml-libnbd-devel | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | perl-Sys-Virt | 6.0.0-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | perl-Sys-Virt | 6.0.0-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | perl-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | python3-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | python3-libnbd | 1.2.2-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | python3-libnbd | 1.2.2-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | python3-libvirt | 6.0.0-1.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | python3-libvirt | 6.0.0-1.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | ruby-hivex | 1.3.18-20.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | seabios | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | seabios-bin | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | seavgabios-bin | 1.13.0-2.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | sgabios | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | sgabios | 1:0.20170427git-3.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4676 |
| AlmaLinux:8 | sgabios-bin | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | sgabios-bin | 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4676 |
| AlmaLinux:8 | supermin | 5.1.19-10.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| AlmaLinux:8 | supermin-devel | 5.1.19-10.module_el8.5.0+2608+72063365 | ALSA-2020:4676 |
| Alpine:v3.20 | libvirt | 6.6.0-r0 | ALPINE-CVE-2020-14339 |
| Alpine:v3.21 | libvirt | 6.6.0-r0 | ALPINE-CVE-2020-14339 |
| Alpine:v3.22 | libvirt | 6.6.0-r0 | ALPINE-CVE-2020-14339 |
| Alpine:v3.23 | libvirt | 6.6.0-r0 | ALPINE-CVE-2020-14339 |
| Alpine:v3.24 | libvirt | 6.6.0-r0 | ALPINE-CVE-2020-14339 |
| Debian:12 | libvirt | 6.6.0-1 | DEBIAN-CVE-2020-14339 |
| Debian:13 | libvirt | 6.6.0-1 | DEBIAN-CVE-2020-14339 |
| Debian:14 | libvirt | 6.6.0-1 | DEBIAN-CVE-2020-14339 |
| Rocky Linux:8 | hivex | 0:1.3.18-20.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | libguestfs-winsupport | 0:8.2-1.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.7.0+1084+97b81f61 | RLSA-2020:4676 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.6.0+847+b490afdd | RLSA-2020:4676 |
| Rocky Linux:8 | libnbd | 0:1.2.2-1.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | libvirt-dbus | 0:1.3.0-2.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | libvirt-dbus | 0:1.3.0-2.module+el8.7.0+1084+97b81f61 | RLSA-2020:4676 |
| Rocky Linux:8 | libvirt-dbus | 0:1.3.0-2.module+el8.6.0+847+b490afdd | RLSA-2020:4676 |
| Rocky Linux:8 | libvirt-python | 0:6.0.0-1.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | nbdkit | 0:1.16.2-4.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.6.0+847+b490afdd | RLSA-2020:4676 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.7.0+1084+97b81f61 | RLSA-2020:4676 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | perl-Sys-Virt | 0:6.0.0-1.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | seabios | 0:1.13.0-2.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.6.0+847+b490afdd | RLSA-2020:4676 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.7.0+1084+97b81f61 | RLSA-2020:4676 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
| Rocky Linux:8 | supermin | 0:5.1.19-10.module+el8.4.0+534+4680a14e | RLSA-2020:4676 |
Affected products (as reported)
Weakness: CWE-772
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1860069
- GLSA-202101-22 vendor-advisory
- GLSA-202210-06 vendor-advisory