A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to 4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | Aug 1, 2019 | Jul 4, 2019 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 30, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-headersUpgrade kernel-tools-libsUpgrade kernel-develUpgrade kernel-toolsUpgrade perfUpgrade kernelUpgrade python-perf | Sep 12, 2019 | Jul 30, 2019 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Jul 31, 2019 | Jun 3, 2019 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Jul 30, 2019 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Jul 30, 2019 | Jul 29, 2019 |
| Suse | — | Upgrade kernel-default-extraUpgrade kernel-defaultUpgrade ocfs2-kmp-defaultUpgrade kernel-devel-azureUpgrade kernel-docsUpgrade kernel-default-manUpgrade kernel-source-azureUpgrade cluster-md-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-azure-baseUpgrade dlm-kmp-defaultUpgrade kernel-obs-build | Jul 16, 2019 | Jul 4, 2019 |
| Ubuntu | — | Upgrade linux-azure-edgeUpgrade linux-raspi2Upgrade linux-oemUpgrade linux-awsUpgrade linux-gcp-edgeUpgrade linux-gcpUpgrade linux-azureUpgrade linux-hwe-edgeUpgrade linux-oracleUpgrade linux-kvmUpgrade linux-hweUpgrade linux-aws-hweUpgrade linux | Nov 19, 2024 | Jul 30, 2019 |
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