A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
CVSS Details
- CVSS 3.1 Base Score: 8
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- CVSS 3.0 Base Score: 6.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-tools | Apr 27, 2020 | Dec 18, 2018 |
| Amazon_linux | — | Upgrade kernel | Jan 25, 2019 | Dec 18, 2018 |
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | Aug 1, 2019 | Dec 18, 2018 |
| Debian | — | Upgrade linux | Mar 28, 2019 | Dec 18, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-debugUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-debug-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-develUpgrade perfUpgrade python-perf | May 30, 2019 | Dec 18, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-develUpgrade python-perfUpgrade kernel-tools-libsUpgrade perfUpgrade kernel-headersUpgrade kernel-tools | May 30, 2019 | Dec 18, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-toolsUpgrade perfUpgrade kernel-debuginfoUpgrade kernel-develUpgrade python-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64 | May 1, 2019 | Dec 18, 2018 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Jul 31, 2019 | Nov 27, 2018 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Dec 18, 2018 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Jul 30, 2019 | Dec 18, 2018 |
| Suse | — | Upgrade kernel-source-azureUpgrade kernel-defaultUpgrade kernel-default-manUpgrade kernel-devel-azureUpgrade kernel-default-extraUpgrade kernel-obs-buildUpgrade kernel-azure-baseUpgrade kernel-docs | Jan 18, 2019 | Dec 18, 2018 |
| Ubuntu | — | Upgrade linux-image-gkeUpgrade linux-image-4.15.0-50-generic-lpaeUpgrade linux-image-generic-lts-xenialUpgrade linux-image-4.15.0-1039-awsUpgrade linux-image-genericUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-4.18.0-1014-raspi2Upgrade linux-image-4.4.0-1043-kvmUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-powerpc-e500mcUpgrade linux-image-azureUpgrade linux-image-4.4.0-145-powerpc64-embUpgrade linux-image-4.4.0-144-genericUpgrade linux-image-4.4.0-144-powerpc-e500mcUpgrade linux-image-4.18.0-20-lowlatencyUpgrade linux-image-4.4.0-1110-snapdragonUpgrade linux-image-4.4.0-145-powerpc64-smpUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-powerpc64-smp-lts-xenialUpgrade linux-image-oemUpgrade linux-image-generic-lpaeUpgrade linux-image-snapdragonUpgrade linux-image-4.18.0-20-genericUpgrade linux-image-4.4.0-144-powerpc64-embUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-powerpc64-smpUpgrade linux-image-4.4.0-144-powerpc64-smpUpgrade linux-image-4.18.0-1011-gcpUpgrade linux-image-virtualUpgrade linux-image-powerpc64-emb-lts-xenialUpgrade linux-image-4.4.0-1040-awsUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-4.4.0-145-generic-lpaeUpgrade linux-image-4.15.0-50-genericUpgrade linux-image-oracleUpgrade linux-image-4.18.0-1012-kvmUpgrade linux-image-4.15.0-1034-kvmUpgrade linux-image-kvmUpgrade linux-image-4.4.0-144-powerpc-smpUpgrade linux-image-4.4.0-145-lowlatencyUpgrade linux-image-4.18.0-1018-azureUpgrade linux-image-generic-lpae-hwe-16.04Upgrade linux-image-awsUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-4.4.0-144-lowlatencyUpgrade linux-image-4.4.0-145-genericUpgrade linux-image-powerpc-smp-lts-xenialUpgrade linux-image-4.4.0-1106-raspi2Upgrade linux-image-4.15.0-1038-oemUpgrade linux-image-4.4.0-145-powerpc-e500mcUpgrade linux-image-powerpc-e500mc-lts-xenialUpgrade linux-image-generic-lpae-lts-xenialUpgrade linux-image-4.15.0-50-lowlatencyUpgrade linux-image-gcpUpgrade linux-image-4.4.0-1079-awsUpgrade linux-image-4.15.0-1053-snapdragonUpgrade linux-image-4.15.0-1032-gcpUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-powerpc64-embUpgrade linux-image-4.18.0-20-snapdragonUpgrade linux-image-4.15.0-1013-oracleUpgrade linux-image-4.15.0-1036-raspi2Upgrade linux-image-4.18.0-20-generic-lpaeUpgrade linux-image-4.15.0-1045-azureUpgrade linux-image-powerpc-smpUpgrade linux-image-4.4.0-145-powerpc-smpUpgrade linux-image-4.4.0-144-generic-lpaeUpgrade linux-image-raspi2Upgrade linux-image-4.18.0-1016-awsUpgrade linux-image-lowlatency | Apr 9, 2019 | Dec 18, 2018 |
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