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F5F5:K04553557HistoryMar 02, 2021 - 12:00 a.m.
K04553557 : Linux nfsd kernel vulnerability CVE-2020-24394
2021-03-0200:00:00
my.f5.com
36
linux kernel
nfsd vulnerability
filesystem objects
acl support
umask
integrity breaches
confidentiality breaches
Security Advisory Description
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered. (CVE-2020-24394)
Impact
The vulnerable system may be subject to integrity and confidentiality breaches.
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