CVE-2020-14339
published 2020-12-03CVE-2020-14339: 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…
PriorityP346high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
EPSS
0.42%
33.7th percentile
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
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libvirt | < libvirt 6.6.0-1 (bookworm) | libvirt 6.6.0-1 (bookworm) |
| redhat | enterprise_linux | — | — |
| redhat | libvirt | — | — |
| redhat | libvirt | >= 0 < 6.6.0-1 | 6.6.0-1 |
| redhat | libvirt | >= 0 < 6.6.0-1 | 6.6.0-1 |
| redhat | libvirt | >= 0 < 6.6.0-1 | 6.6.0-1 |
| redhat | libvirt | >= 0 < 6.6.0-1 | 6.6.0-1 |
| redhat | libvirt | >= 6.2.0 < 6.7.0 | 6.7.0 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
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Red Hat
libvirt: leak of /dev/mapper/control into QEMU guests
vendor_redhat·2020-07-17·CVSS 8.8
CVE-2020-14339 [HIGH] CWE-772 libvirt: leak of /dev/mapper/control into QEMU guests
libvirt: leak of /dev/mapper/control into QEMU guests
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.
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
Debian
CVE-2020-14339: libvirt - A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/...
vendor_debian·2020·CVSS 8.8
CVE-2020-14339 [HIGH] CVE-2020-14339: libvirt - A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/...
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.
Scope: local
bookworm: resolved (fixed in 6.6.0-1)
bullseye: resolved (fixed in 6.6.0-1)
forky: resolved (fixed in 6.6.0-1)
sid: resolved (fixed in 6.6.0-1)
trixie: resolved (fixed in 6.6.0-1)
GHSA
GHSA-c772-g5j9-w9w8: A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process
ghsa_unreviewed·2022-05-24
CVE-2020-14339 [HIGH] CWE-772 GHSA-c772-g5j9-w9w8: A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process
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.
OSV
CVE-2020-14339: A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process
osv·2020-12-03·CVSS 8.8
CVE-2020-14339 [HIGH] CVE-2020-14339: A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-14339 libvirt: leak of /dev/mapper/control into QEMU guests [fedora-all]
bugzilla·2020-09-21·CVSS 8.8
CVE-2020-14339 [HIGH] CVE-2020-14339 libvirt: leak of /dev/mapper/control into QEMU guests [fedora-all]
CVE-2020-14339 libvirt: leak of /dev/mapper/control into QEMU guests [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported vers
Bugzilla
CVE-2020-14339 mingw-libvirt: libvirt: leak of /dev/mapper/control into QEMU guests [fedora-all]
bugzilla·2020-09-21·CVSS 8.8
CVE-2020-14339 [HIGH] CVE-2020-14339 mingw-libvirt: libvirt: leak of /dev/mapper/control into QEMU guests [fedora-all]
CVE-2020-14339 mingw-libvirt: libvirt: leak of /dev/mapper/control into QEMU guests [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple
Bugzilla
CVE-2020-14339 libvirt: leak of /dev/mapper/control into QEMU guests
bugzilla·2020-07-23·CVSS 8.8
CVE-2020-14339 [HIGH] CVE-2020-14339 libvirt: leak of /dev/mapper/control into QEMU guests
CVE-2020-14339 libvirt: leak of /dev/mapper/control into QEMU guests
It was discovered that libvirt is accidentally leaking a file descriptor for /dev/mapper/control into the QEMU process. This file descriptor allows for privileged operations to be made against device mapper on the host. Thus a malicious QEMU has the potential to do serious damage to the host OS.
Upstream fix:
https://libvirt.org/git/?p=libvirt.git;a=commit;h=22494556542c676d1b9e7f1c1f2ea13ac17e1e3e
Discussion:
Acknowledgments:
Name: Daniel Berrange (Red Hat)
---
Statement:
This flaw was introduced in `libvirt` version 6.2.0. Red Hat Enterprise Linux 5, 6, 7, and 8 are not affected by this issue as they shipped an older version of the `libvirt` package which did not include the vulnerable code.
This issue affects
2020-12-03
Published