CVE-2020-12888
First published: Thu May 14 2020(Updated: )
A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices' MMIO memory address spaces. If a user attempts to access the read/write devices' MMIO address space when it is disabled, some h/w devices issue an interrupt to the CPU to indicate a fatal error condition, crashing the system. This flaw allows a guest user or process to crash the host system resulting in a denial of service.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-1127.13.1.rt56.1110.el7 | 0:3.10.0-1127.13.1.rt56.1110.el7 |
| redhat/kernel | <0:3.10.0-1127.13.1.el7 | 0:3.10.0-1127.13.1.el7 |
| redhat/kernel-alt | <0:4.14.0-115.26.1.el7a | 0:4.14.0-115.26.1.el7a |
| redhat/kernel | <0:3.10.0-327.89.1.el7 | 0:3.10.0-327.89.1.el7 |
| redhat/kernel | <0:3.10.0-514.78.1.el7 | 0:3.10.0-514.78.1.el7 |
| redhat/kernel | <0:3.10.0-693.71.2.el7 | 0:3.10.0-693.71.2.el7 |
| redhat/kernel | <0:3.10.0-957.56.1.el7 | 0:3.10.0-957.56.1.el7 |
| redhat/kernel | <0:3.10.0-1062.30.1.el7 | 0:3.10.0-1062.30.1.el7 |
| redhat/kernel-rt | <0:4.18.0-193.13.2.rt13.65.el8_2 | 0:4.18.0-193.13.2.rt13.65.el8_2 |
| redhat/kernel | <0:4.18.0-193.13.2.el8_2 | 0:4.18.0-193.13.2.el8_2 |
| redhat/kernel | <0:4.18.0-80.27.1.el8_0 | 0:4.18.0-80.27.1.el8_0 |
| redhat/kernel | <0:4.18.0-147.24.2.el8_1 | 0:4.18.0-147.24.2.el8_1 |
| IBM Data Risk Manager | <=2.0.6 | |
| Linux Kernel | <=5.6.13 | |
| Red Hat Fedora | =31 | |
| Red Hat Fedora | =32 | |
| SUSE Linux | =15.1 | |
| SUSE Linux | =15.2 | |
| Debian Linux | =9.0 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =20.04 | |
| NetApp Active IQ Unified Manager for VMware vSphere | ||
| NetApp Cloud Backup | ||
| NetApp Management Services for Element Software | ||
| NetApp SolidFire & HCI Management Node | ||
| NetApp SolidFire & HCI Storage Node | ||
| NetApp SteelStore Cloud Integrated Storage | ||
| All of | ||
| NetApp SolidFire Baseboard Management Controller Firmware | ||
| NetApp SolidFire | ||
| All of | ||
| NetApp HCI Bootstrap OS | ||
| NetApp HCI Compute Node | ||
| All of | ||
| NetApp AFF A700s Firmware | ||
| NetApp A700 | ||
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| All of | ||
| NetApp H610C | ||
| NetApp H610C Firmware | ||
| All of | ||
| NetApp HCI H610S Firmware | ||
| NetApp H610S Firmware | ||
| All of | ||
| NetApp H615C | ||
| NetApp H615C | ||
| NetApp SolidFire Baseboard Management Controller Firmware | ||
| NetApp SolidFire | ||
| NetApp HCI Bootstrap OS | ||
| NetApp HCI Compute Node | ||
| NetApp AFF A700s Firmware | ||
| NetApp A700 | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700E | ||
| NetApp H700E | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| NetApp H610C | ||
| NetApp H610C Firmware | ||
| NetApp HCI H610S Firmware | ||
| NetApp H610S Firmware | ||
| NetApp H615C | ||
| NetApp H615C | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-12888 https://nvd.nist.gov/vuln/detail/CVE-2020-12888
- https://bugzilla.redhat.com/show_bug.cgi?id=1836244
- https://access.redhat.com/errata/RHSA-2020:2665
- https://access.redhat.com/errata/RHSA-2020:2664
- https://access.redhat.com/errata/RHSA-2020:2854
- https://access.redhat.com/errata/RHSA-2020:2831
- https://access.redhat.com/errata/RHSA-2020:2832
- https://access.redhat.com/errata/RHSA-2020:3230
- https://access.redhat.com/errata/RHSA-2020:2851
- https://access.redhat.com/errata/RHSA-2020:3019
- https://access.redhat.com/errata/RHSA-2020:3016
- https://access.redhat.com/errata/RHSA-2020:3010
- https://access.redhat.com/errata/RHSA-2020:3041
- https://access.redhat.com/errata/RHSA-2020:3222
- https://access.redhat.com/security/cve/cve-2020-12888
- https://lore.kernel.org/kvm/158871570274.15589.10563806532874116326.stgit@gimli.home/
- https://lore.kernel.org/kvm/158871401328.15589.17598154478222071285.stgit@gimli.home/
- https://www.openwall.com/lists/oss-security/2020/05/19/6
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1836245
- http://www.openwall.com/lists/oss-security/2020/05/19/6
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NXGMJHWTMQI34NJZ4BHL3ZVF264AWBF2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CBEHRQQZTKJTPQFPY3JAO7MQ4JAFEQNW/
- https://security.netapp.com/advisory/ntap-20200608-0001/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- https://usn.ubuntu.com/4525-1/
- https://usn.ubuntu.com/4526-1/
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://launchpad.net/bugs/cve/CVE-2020-12888
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBEHRQQZTKJTPQFPY3JAO7MQ4JAFEQNW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXGMJHWTMQI34NJZ4BHL3ZVF264AWBF2/
- https://lore.kernel.org/kvm/158871401328.15589.17598154478222071285.stgit%40gimli.home/
- https://lore.kernel.org/kvm/158871570274.15589.10563806532874116326.stgit%40gimli.home/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/182003
- https://www.ibm.com/support/pages/node/6335281 (Advisory)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12888
- https://nvd.nist.gov/vuln/detail/CVE-2020-12888
- https://security-tracker.debian.org/tracker/CVE-2020-12888
- https://ubuntu.com/security/CVE-2020-12888
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2020-12888?
CVE-2020-12888 is categorized as a high-severity vulnerability affecting the Linux kernel.
How do I fix CVE-2020-12888?
To fix CVE-2020-12888, update your Linux kernel to the patched version provided by your distribution.
What products are affected by CVE-2020-12888?
CVE-2020-12888 affects multiple distributions of the Linux kernel, including specific versions from RedHat, Debian, Ubuntu, and Fedora.
What types of attacks can exploit CVE-2020-12888?
CVE-2020-12888 can be exploited by malicious userspace processes to gain unauthorized access to hardware devices.
When was CVE-2020-12888 disclosed?
CVE-2020-12888 was disclosed in July 2020.
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- canonical/netapp aff a700s firmware
- canonical/netapp a700
- canonical/netapp h300s firmware
- canonical/netapp h500e firmware
- canonical/netapp h700s
- canonical/netapp h300e
- canonical/netapp h300e firmware
- canonical/netapp h500s firmware
- canonical/netapp h700e
- canonical/netapp h410s
- canonical/netapp h410s firmware
- canonical/netapp h410c
- canonical/netapp h410c firmware
- canonical/netapp h610c
- canonical/netapp h610c firmware
- canonical/netapp hci h610s firmware
- canonical/netapp h610s firmware
- canonical/netapp h615c
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