CVE-2020-10732
First published: Fri May 01 2020(Updated: )
A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-1160.rt56.1131.el7 | 0:3.10.0-1160.rt56.1131.el7 |
| redhat/kernel | <0:3.10.0-1160.el7 | 0:3.10.0-1160.el7 |
| redhat/kernel-rt | <0:4.18.0-240.rt7.54.el8 | 0:4.18.0-240.rt7.54.el8 |
| redhat/kernel | <0:4.18.0-240.el8 | 0:4.18.0-240.el8 |
| Google Android | ||
| ubuntu/linux | <4.15.0-115.116 | 4.15.0-115.116 |
| ubuntu/linux | <5.4.0-40.44 | 5.4.0-40.44 |
| ubuntu/linux | <5.7 | 5.7 |
| ubuntu/linux | <4.4.0-186.216 | 4.4.0-186.216 |
| ubuntu/linux-aws | <4.15.0-1080.84 | 4.15.0-1080.84 |
| ubuntu/linux-aws | <5.4.0-1018.18 | 5.4.0-1018.18 |
| ubuntu/linux-aws | <4.4.0-1075.79 | 4.4.0-1075.79 |
| ubuntu/linux-aws | <5.7 | 5.7 |
| ubuntu/linux-aws | <4.4.0-1111.123 | 4.4.0-1111.123 |
| ubuntu/linux-aws-5.0 | <5.7 | 5.7 |
| ubuntu/linux-aws-5.3 | <5.3.0-1032.34~18.04.2 | 5.3.0-1032.34~18.04.2 |
| ubuntu/linux-aws-5.3 | <5.7 | 5.7 |
| ubuntu/linux-aws-5.4 | <5.7 | 5.7 |
| ubuntu/linux-aws-hwe | <5.7 | 5.7 |
| ubuntu/linux-aws-hwe | <4.15.0-1080.84~16.04.1 | 4.15.0-1080.84~16.04.1 |
| ubuntu/linux-azure | <5.4.0-1020.20 | 5.4.0-1020.20 |
| ubuntu/linux-azure | <4.15.0-1093.103~14.04.1 | 4.15.0-1093.103~14.04.1 |
| ubuntu/linux-azure | <5.7 | 5.7 |
| ubuntu/linux-azure | <4.15.0-1093.103~16.04.1 | 4.15.0-1093.103~16.04.1 |
| ubuntu/linux-azure-4.15 | <4.15.0-1093.103 | 4.15.0-1093.103 |
| ubuntu/linux-azure-4.15 | <5.7 | 5.7 |
| ubuntu/linux-azure-5.3 | <5.3.0-1034.35~18.04.1 | 5.3.0-1034.35~18.04.1 |
| ubuntu/linux-azure-5.3 | <5.7 | 5.7 |
| ubuntu/linux-azure-5.4 | <5.7 | 5.7 |
| ubuntu/linux-azure-edge | <5.7 | 5.7 |
| ubuntu/linux-gcp | <5.4.0-1019.19 | 5.4.0-1019.19 |
| ubuntu/linux-gcp | <5.7 | 5.7 |
| ubuntu/linux-gcp | <4.15.0-1081.92~16.04.1 | 4.15.0-1081.92~16.04.1 |
| ubuntu/linux-gcp-4.15 | <4.15.0-1081.92 | 4.15.0-1081.92 |
| ubuntu/linux-gcp-4.15 | <5.7 | 5.7 |
| ubuntu/linux-gcp-5.3 | <5.3.0-1032.34~18.04.1 | 5.3.0-1032.34~18.04.1 |
| ubuntu/linux-gcp-5.3 | <5.7 | 5.7 |
| ubuntu/linux-gcp-edge | <5.7 | 5.7 |
| ubuntu/linux-gke-4.15 | <4.15.0-1067.70 | 4.15.0-1067.70 |
| ubuntu/linux-gke-4.15 | <5.7 | 5.7 |
| ubuntu/linux-gke-5.0 | <5.0.0-1045.46 | 5.0.0-1045.46 |
| ubuntu/linux-gke-5.0 | <5.7 | 5.7 |
| ubuntu/linux-gke-5.3 | <5.3.0-1032.34~18.04.1 | 5.3.0-1032.34~18.04.1 |
| ubuntu/linux-gke-5.3 | <5.7 | 5.7 |
| ubuntu/linux-hwe | <5.3.0-64.58~18.04.1 | 5.3.0-64.58~18.04.1 |
| ubuntu/linux-hwe | <5.7 | 5.7 |
| ubuntu/linux-hwe | <4.15.0-115.116~16.04.1 | 4.15.0-115.116~16.04.1 |
| ubuntu/linux-hwe-5.4 | <5.4.0-40.44~18.04.1 | 5.4.0-40.44~18.04.1 |
| ubuntu/linux-hwe-5.4 | <5.7 | 5.7 |
| ubuntu/linux-hwe-edge | <5.7 | 5.7 |
| ubuntu/linux-kvm | <4.15.0-1072.73 | 4.15.0-1072.73 |
| ubuntu/linux-kvm | <5.4.0-1018.18 | 5.4.0-1018.18 |
| ubuntu/linux-kvm | <5.7 | 5.7 |
| ubuntu/linux-kvm | <4.4.0-1077.84 | 4.4.0-1077.84 |
| ubuntu/linux-lts-trusty | <5.7 | 5.7 |
| ubuntu/linux-lts-xenial | <4.4.0-186.216~14.04.1 | 4.4.0-186.216~14.04.1 |
| ubuntu/linux-lts-xenial | <5.7 | 5.7 |
| ubuntu/linux-oem | <4.15.0-1094.104 | 4.15.0-1094.104 |
| ubuntu/linux-oem | <5.7 | 5.7 |
| ubuntu/linux-oem-5.6 | <5.6.0-1018.18 | 5.6.0-1018.18 |
| ubuntu/linux-oem-5.6 | <5.7 | 5.7 |
| ubuntu/linux-oem-osp1 | <5.0.0-1065.70 | 5.0.0-1065.70 |
| ubuntu/linux-oem-osp1 | <5.7 | 5.7 |
| ubuntu/linux-oracle | <4.15.0-1051.55 | 4.15.0-1051.55 |
| ubuntu/linux-oracle | <5.4.0-1019.19 | 5.4.0-1019.19 |
| ubuntu/linux-oracle | <5.7 | 5.7 |
| ubuntu/linux-oracle | <4.15.0-1051.55~16.04.1 | 4.15.0-1051.55~16.04.1 |
| ubuntu/linux-oracle-5.0 | <5.7 | 5.7 |
| ubuntu/linux-oracle-5.3 | <5.3.0-1030.32~18.04.1 | 5.3.0-1030.32~18.04.1 |
| ubuntu/linux-oracle-5.3 | <5.7 | 5.7 |
| ubuntu/linux-raspi | <5.4.0-1013.13 | 5.4.0-1013.13 |
| ubuntu/linux-raspi | <5.7 | 5.7 |
| ubuntu/linux-raspi-5.4 | <5.7 | 5.7 |
| ubuntu/linux-raspi2 | <4.15.0-1068.72 | 4.15.0-1068.72 |
| ubuntu/linux-raspi2 | <5.7 | 5.7 |
| ubuntu/linux-raspi2 | <4.4.0-1136.145 | 4.4.0-1136.145 |
| ubuntu/linux-raspi2-5.3 | <5.3.0-1030.32~18.04.2 | 5.3.0-1030.32~18.04.2 |
| ubuntu/linux-raspi2-5.3 | <5.7 | 5.7 |
| ubuntu/linux-riscv | <5.4.0-28.32 | 5.4.0-28.32 |
| ubuntu/linux-riscv | <5.7 | 5.7 |
| ubuntu/linux-snapdragon | <4.15.0-1084.92 | 4.15.0-1084.92 |
| ubuntu/linux-snapdragon | <5.7 | 5.7 |
| ubuntu/linux-snapdragon | <4.4.0-1140.148 | 4.4.0-1140.148 |
| Linux Linux kernel | <3.16.85 | |
| Linux Linux kernel | >=4.4<4.4.226 | |
| Linux Linux kernel | >=4.9<4.9.226 | |
| Linux Linux kernel | >=4.14<4.14.183 | |
| Linux Linux kernel | >=4.19<4.19.126 | |
| Linux Linux kernel | >=5.4<5.4.44 | |
| Linux Linux kernel | >=5.6<5.6.16 | |
| openSUSE Leap | =15.1 | |
| openSUSE Leap | =15.2 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 | |
| Netapp Active Iq Unified Manager Vmware Vsphere | >=9.5 | |
| Netapp Hci Management Node | ||
| Netapp Solidfire | ||
| Netapp Steelstore Cloud Integrated Storage | ||
| All of | ||
| Netapp Aff A700 Firmware | ||
| Netapp Aff A700 | ||
| All of | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| 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 Aff 8300 Firmware | ||
| Netapp Aff 8300 | ||
| All of | ||
| Netapp Aff 8700 Firmware | ||
| Netapp Aff 8700 | ||
| All of | ||
| Netapp Aff A400 Firmware | ||
| Netapp Aff A400 | ||
| Netapp Aff A700 Firmware | ||
| Netapp Aff A700 | ||
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| 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 Aff 8300 Firmware | ||
| Netapp Aff 8300 | ||
| Netapp Aff 8700 Firmware | ||
| Netapp Aff 8700 | ||
| Netapp Aff A400 Firmware | ||
| Netapp Aff A400 | ||
| debian/linux | 4.19.249-2 4.19.304-1 5.10.209-2 5.10.216-1 6.1.76-1 6.1.90-1 6.7.12-1 6.8.9-1 |
Remedy
Possible mitigation would be to disable core dumps system-wide by setting: * hard core 0 In the /etc/security/limits.conf file and restarting applications/services/processes which users may have access to or simply reboot the system. This disables core dumps which may not be a suitable workaround in your environment.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-10732 https://nvd.nist.gov/vuln/detail/CVE-2020-10732
- https://bugzilla.redhat.com/show_bug.cgi?id=1831399
- https://access.redhat.com/errata/RHSA-2020:4062
- https://access.redhat.com/errata/RHSA-2020:4060
- https://access.redhat.com/errata/RHSA-2020:4609
- https://access.redhat.com/errata/RHSA-2020:4431
- https://access.redhat.com/security/cve/cve-2020-10732
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10732
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aca969cacf07f41070d788ce2b8ca71f09d5207d
- https://github.com/google/kmsan/issues/76
- https://github.com/ruscur/linux/commit/a95cdec9fa0c08e6eeb410d461c03af8fd1fef0a
- https://lore.kernel.org/lkml/CAG_fn=VZZ7yUxtOGzuTLkr7wmfXWtKK9BHHYawj=rt9XWnCYvg%40mail.gmail.com/
- https://security.netapp.com/advisory/ntap-20210129-0005/
- https://twitter.com/grsecurity/status/1252558055629299712
- https://usn.ubuntu.com/4411-1/
- https://usn.ubuntu.com/4427-1/
- https://usn.ubuntu.com/4439-1/
- https://usn.ubuntu.com/4440-1/
- https://usn.ubuntu.com/4485-1/
- https://launchpad.net/bugs/cve/CVE-2020-10732
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1832059
- http://android.googlesource.com/kernel/common/+/1d605416fb7175e1adf094251466caa52093b413
- https://source.android.com/docs/security/bulletin/2021-01-01 (Advisory)
- https://www.openwall.com/lists/oss-security/2020/05/06/1
- https://git.kernel.org/linus/1d605416fb7175e1adf094251466caa52093b413
- https://security-tracker.debian.org/tracker/CVE-2020-10732
- https://lore.kernel.org/lkml/CAG48ez1u9=Uqcx2dH=7xea1R+WpnL239DSoVHLwV09=FxZUevQ@mail.gmail.com/#t
- https://ubuntu.com/security/notices/USN-4411-1
- https://ubuntu.com/security/notices/USN-4427-1
- https://ubuntu.com/security/notices/USN-4439-1
- https://ubuntu.com/security/notices/USN-4440-1
- https://ubuntu.com/security/notices/USN-4485-1
- https://www.cve.org/CVERecord?id=CVE-2020-10732
- https://nvd.nist.gov/vuln/detail/CVE-2020-10732
- https://git.kernel.org/linus/4206d3aa1978e44f58bfa4e1c9d8d35cbf19c187
- https://git.kernel.org/linus/91c3dba7dbc199191272f4a9863f86ea3bfd679f
- https://ubuntu.com/security/CVE-2020-10732
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-10732
- collector/android-source
- agent/software-canonical-lookup-request
- agent/author
- agent/remedy
- agent/severity
- agent/weakness
- agent/description
- collector/usn-cve
- source/Ubuntu
- agent/software-canonical-lookup
- agent/references
- collector/security-tracker-debian
- source/Debian
- agent/event
- agent/softwarecombine
- agent/tags
- collector/nvd-cve
- source/NVD
- collector/nvd-index
- package-manager/redhat
- vendor/google
- canonical/google android
- package-manager/ubuntu
- package-manager/debian
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/4.4
- version/linux linux kernel/4.9
- version/linux linux kernel/4.14
- version/linux linux kernel/4.19
- version/linux linux kernel/5.4
- version/linux linux kernel/5.6
- vendor/opensuse
- canonical/opensuse leap
- version/opensuse leap/15.1
- version/opensuse leap/15.2
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/20.04
- vendor/netapp
- canonical/netapp active iq unified manager vmware vsphere
- version/netapp active iq unified manager vmware vsphere/9.5
- canonical/netapp hci management node
- canonical/netapp solidfire
- canonical/netapp steelstore cloud integrated storage
- canonical/netapp aff a700 firmware
- canonical/netapp aff a700
- canonical/netapp h410c firmware
- canonical/netapp h410c
- 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 aff 8300 firmware
- canonical/netapp aff 8300
- canonical/netapp aff 8700 firmware
- canonical/netapp aff 8700
- canonical/netapp aff a400 firmware
- canonical/netapp aff a400