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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade kernelUpgrade kernel-rt | Aug 1, 2019 | Jul 4, 2019 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 30, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-tools-libsUpgrade kernel-develUpgrade kernel-headersUpgrade python-perfUpgrade kernel-toolsUpgrade kernelUpgrade perf | Sep 12, 2019 | Jul 30, 2019 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Jul 31, 2019 | Jun 3, 2019 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Jul 30, 2019 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Jul 30, 2019 | Jul 29, 2019 |
| Suse | — | Upgrade kernel-default-manUpgrade dlm-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-obs-buildUpgrade kernel-azure-baseUpgrade cluster-md-kmp-defaultUpgrade kernel-source-azureUpgrade kernel-docsUpgrade ocfs2-kmp-defaultUpgrade kernel-devel-azureUpgrade kernel-default-extraUpgrade kernel-default | Jul 16, 2019 | Jul 4, 2019 |
| Ubuntu | — | Upgrade linux-aws-hweUpgrade linuxUpgrade linux-kvmUpgrade linux-oracleUpgrade linux-hweUpgrade linux-oemUpgrade linux-azure-edgeUpgrade linux-awsUpgrade linux-raspi2Upgrade linux-azureUpgrade linux-hwe-edgeUpgrade linux-gcp-edgeUpgrade linux-gcp | Nov 19, 2024 | Jul 30, 2019 |
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