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 | amazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo | Apr 27, 2020 | Dec 18, 2018 | |
| Amazon_linux | — | amazon-linux-upgrade-kernel | Jan 25, 2019 | Dec 18, 2018 |
| Centos_linux | — | centos-upgrade-kernelcentos-upgrade-kernel-rt | Aug 1, 2019 | Dec 18, 2018 |
| Debian | debian-upgrade-linux | Mar 28, 2019 | Dec 18, 2018 | |
| Huawei Euleros 2_0_sp2 | huawei-euleros-2_0_sp2-upgrade-kernelhuawei-euleros-2_0_sp2-upgrade-kernel-debughuawei-euleros-2_0_sp2-upgrade-kernel-debug-develhuawei-euleros-2_0_sp2-upgrade-kernel-debuginfohuawei-euleros-2_0_sp2-upgrade-kernel-debuginfo-common-x86_64huawei-euleros-2_0_sp2-upgrade-kernel-develhuawei-euleros-2_0_sp2-upgrade-kernel-headershuawei-euleros-2_0_sp2-upgrade-kernel-toolshuawei-euleros-2_0_sp2-upgrade-kernel-tools-libshuawei-euleros-2_0_sp2-upgrade-perfhuawei-euleros-2_0_sp2-upgrade-python-perf | May 30, 2019 | Dec 18, 2018 | |
| Huawei Euleros 2_0_sp3 | huawei-euleros-2_0_sp3-upgrade-kernelhuawei-euleros-2_0_sp3-upgrade-kernel-debuginfohuawei-euleros-2_0_sp3-upgrade-kernel-debuginfo-common-x86_64huawei-euleros-2_0_sp3-upgrade-kernel-develhuawei-euleros-2_0_sp3-upgrade-kernel-headershuawei-euleros-2_0_sp3-upgrade-kernel-toolshuawei-euleros-2_0_sp3-upgrade-kernel-tools-libshuawei-euleros-2_0_sp3-upgrade-perfhuawei-euleros-2_0_sp3-upgrade-python-perf | May 30, 2019 | Dec 18, 2018 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-kernelhuawei-euleros-2_0_sp5-upgrade-kernel-debuginfohuawei-euleros-2_0_sp5-upgrade-kernel-debuginfo-common-x86_64huawei-euleros-2_0_sp5-upgrade-kernel-develhuawei-euleros-2_0_sp5-upgrade-kernel-headershuawei-euleros-2_0_sp5-upgrade-kernel-toolshuawei-euleros-2_0_sp5-upgrade-kernel-tools-libshuawei-euleros-2_0_sp5-upgrade-perfhuawei-euleros-2_0_sp5-upgrade-python-perf | May 1, 2019 | Dec 18, 2018 | |
| Oracle_linux | — | oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek | Jul 31, 2019 | Nov 27, 2018 |
| Redhat Openshift | linuxrpm-upgrade-redhat-coreos | Dec 29, 2020 | Dec 18, 2018 | |
| Redhat_linux | redhat-upgrade-kernelredhat-upgrade-kernel-rt | Jul 30, 2019 | Dec 18, 2018 | |
| Suse | — | suse-upgrade-kernel-azure-basesuse-upgrade-kernel-defaultsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-default-mansuse-upgrade-kernel-devel-azuresuse-upgrade-kernel-docssuse-upgrade-kernel-obs-buildsuse-upgrade-kernel-source-azure | Jan 18, 2019 | Dec 18, 2018 |
| Ubuntu | ubuntu-upgrade-linux-image-4-15-0-1013-oracleubuntu-upgrade-linux-image-4-15-0-1032-gcpubuntu-upgrade-linux-image-4-15-0-1034-kvmubuntu-upgrade-linux-image-4-15-0-1036-raspi2ubuntu-upgrade-linux-image-4-15-0-1038-oemubuntu-upgrade-linux-image-4-15-0-1039-awsubuntu-upgrade-linux-image-4-15-0-1045-azureubuntu-upgrade-linux-image-4-15-0-1053-snapdragonubuntu-upgrade-linux-image-4-15-0-50-genericubuntu-upgrade-linux-image-4-15-0-50-generic-lpaeubuntu-upgrade-linux-image-4-15-0-50-lowlatencyubuntu-upgrade-linux-image-4-18-0-1011-gcpubuntu-upgrade-linux-image-4-18-0-1012-kvmubuntu-upgrade-linux-image-4-18-0-1014-raspi2ubuntu-upgrade-linux-image-4-18-0-1016-awsubuntu-upgrade-linux-image-4-18-0-1018-azureubuntu-upgrade-linux-image-4-18-0-20-genericubuntu-upgrade-linux-image-4-18-0-20-generic-lpaeubuntu-upgrade-linux-image-4-18-0-20-lowlatencyubuntu-upgrade-linux-image-4-18-0-20-snapdragonubuntu-upgrade-linux-image-4-4-0-1040-awsubuntu-upgrade-linux-image-4-4-0-1043-kvmubuntu-upgrade-linux-image-4-4-0-1079-awsubuntu-upgrade-linux-image-4-4-0-1106-raspi2ubuntu-upgrade-linux-image-4-4-0-1110-snapdragonubuntu-upgrade-linux-image-4-4-0-144-genericubuntu-upgrade-linux-image-4-4-0-144-generic-lpaeubuntu-upgrade-linux-image-4-4-0-144-lowlatencyubuntu-upgrade-linux-image-4-4-0-144-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-144-powerpc-smpubuntu-upgrade-linux-image-4-4-0-144-powerpc64-embubuntu-upgrade-linux-image-4-4-0-144-powerpc64-smpubuntu-upgrade-linux-image-4-4-0-145-genericubuntu-upgrade-linux-image-4-4-0-145-generic-lpaeubuntu-upgrade-linux-image-4-4-0-145-lowlatencyubuntu-upgrade-linux-image-4-4-0-145-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-145-powerpc-smpubuntu-upgrade-linux-image-4-4-0-145-powerpc64-embubuntu-upgrade-linux-image-4-4-0-145-powerpc64-smpubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-lts-xenial | Apr 9, 2019 | Dec 18, 2018 |
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