Privilege Dropping / Lowering Errors Affecting kernel-bootwrapper package, versions <0:3.10.0-1160.15.2.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-1532003
- published 26 Jul 2021
- disclosed 21 Dec 2020
Introduced: 21 Dec 2020
CVE-2020-35513 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-1160.15.2.el7 or higher.
This issue was patched in RHSA-2021:0336.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
A flaw incorrect umask during file or directory modification in the Linux kernel NFS (network file system) functionality was found in the way user create and delete object using NFSv4.2 or newer if both simultaneously accessing the NFS by the other process that is not using new NFSv4.2. A user with access to the NFS could use this flaw to starve the resources causing denial of service.
References
- https://access.redhat.com/security/cve/CVE-2020-35513
- https://bugzilla.redhat.com/show_bug.cgi?id=1911309
- https://patchwork.kernel.org/project/linux-nfs/patch/20180403203916.GH20297@fieldses.org/
- https://access.redhat.com/errata/RHSA-2021:0336
- https://patchwork.kernel.org/project/linux-nfs/patch/20180403203916.GH20297%40fieldses.org/