CVE-2020-12771
First published: Sat May 09 2020(Updated: )
An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=5.6.11 | |
| Debian GNU/Linux | =9.0 | |
| openSUSE | =15.1 | |
| openSUSE | =15.2 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =20.04 | |
| NetApp Active IQ Unified Manager for VMware vSphere | ||
| netapp cloud backup | ||
| NetApp Element Software | ||
| netapp hci management node | ||
| netapp solidfire | ||
| NetApp SteelStore | ||
| All of | ||
| netapp hci bootstrap os | ||
| netapp hci compute node | ||
| All of | ||
| NetApp AFF A700s Firmware | ||
| netapp a700s | ||
| All of | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| All of | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| All of | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| All of | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| All of | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| All of | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| All of | ||
| netapp h410s firmware | ||
| netapp h410s | ||
| All of | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| All of | ||
| netapp h610c firmware | ||
| netapp h610c | ||
| All of | ||
| netapp h610s firmware | ||
| netapp h610s | ||
| All of | ||
| netapp h615c firmware | ||
| netapp h615c | ||
| Oracle SD-WAN Edge | =8.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Debian | =9.0 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =20.04 | |
| netapp hci bootstrap os | ||
| netapp hci compute node | ||
| NetApp AFF A700s Firmware | ||
| netapp a700s | ||
| netapp h300s firmware | ||
| netapp h300s | ||
| NetApp H500S Firmware | ||
| netapp h500s | ||
| netapp h700s firmware | ||
| netapp h700s | ||
| netapp h300e firmware | ||
| netapp h300e | ||
| netapp h500e firmware | ||
| netapp h500e | ||
| netapp h700e firmware | ||
| netapp h700e | ||
| netapp h410s firmware | ||
| netapp h410s | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| netapp h610c firmware | ||
| netapp h610c | ||
| netapp h610s firmware | ||
| netapp h610s | ||
| netapp h615c firmware | ||
| netapp h615c |
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Reference Links
- https://lkml.org/lkml/2020/4/26/87
- https://security.netapp.com/advisory/ntap-20200608-0001/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html
- https://usn.ubuntu.com/4463-1/
- https://usn.ubuntu.com/4465-1/
- https://usn.ubuntu.com/4462-1/
- https://usn.ubuntu.com/4483-1/
- https://usn.ubuntu.com/4485-1/
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://launchpad.net/bugs/cve/CVE-2020-12771
- https://git.kernel.org/linus/be23e837333a914df3f24bf0b32e87b0331ab8d1
- https://security-tracker.debian.org/tracker/CVE-2020-12771
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12771
- https://nvd.nist.gov/vuln/detail/CVE-2020-12771
- https://ubuntu.com/security/CVE-2020-12771
Frequently Asked Questions
What is the severity of CVE-2020-12771?
CVE-2020-12771 has a moderate severity level due to a potential deadlock during coalescing operations in the Linux kernel.
How do I fix CVE-2020-12771?
To fix CVE-2020-12771, upgrade to Linux kernel versions 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, or 6.12.10-1.
Which versions of the Linux kernel are vulnerable to CVE-2020-12771?
Versions of the Linux kernel up to 5.6.11 are vulnerable to CVE-2020-12771.
What is the impact of CVE-2020-12771 on system performance?
The impact of CVE-2020-12771 can result in a system deadlock during certain operations, potentially affecting system availability.
Is CVE-2020-12771 exploited in the wild?
As of the last update, there is no public information indicating that CVE-2020-12771 is actively exploited in the wild.
- agent/type
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- agent/weakness
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- source/MITRE
- agent/remedy
- agent/references
- agent/first-publish-date
- collector/usn-cve
- source/Ubuntu
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- agent/last-modified-date
- agent/trending
- agent/source
- agent/event
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/nvd-index
- vendor/linux
- canonical/linux kernel
- version/linux kernel/5.6.11
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0
- vendor/opensuse
- canonical/opensuse
- version/opensuse/15.1
- version/opensuse/15.2
- vendor/canonical
- canonical/ubuntu linux
- version/ubuntu linux/14.04
- version/ubuntu linux/16.04
- version/ubuntu linux/18.04
- version/ubuntu linux/20.04
- vendor/netapp
- canonical/netapp active iq unified manager for vmware vsphere
- canonical/netapp cloud backup
- canonical/netapp element software
- canonical/netapp hci management node
- canonical/netapp solidfire
- canonical/netapp steelstore
- canonical/netapp hci bootstrap os
- canonical/netapp hci compute node
- canonical/netapp aff a700s firmware
- canonical/netapp a700s
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s
- canonical/netapp h410c firmware
- canonical/netapp h410c
- canonical/netapp h610c firmware
- canonical/netapp h610c
- canonical/netapp h610s firmware
- canonical/netapp h610s
- canonical/netapp h615c firmware
- canonical/netapp h615c
- vendor/oracle
- canonical/oracle sd-wan edge
- version/oracle sd-wan edge/8.2
- package-manager/debian
- canonical/debian
- version/debian/9.0
- canonical/ubuntu
- version/ubuntu/14.04
- version/ubuntu/16.04
- version/ubuntu/18.04
- version/ubuntu/20.04