CVE-2021-3178
Medium
Description
fs/nfsd/nfs3xdr.c in the Linux kernel through 5.10.8, when there is an NFS export of a subdirectory of a filesystem, allows remote attackers to traverse to other parts of the filesystem via READDIRPLUS. NOTE: some parties argue that such a subdirectory export is not intended to prevent this attack; see also the exports(5) no_subtree_check default behavior
SeverityMedium
CVSS6.5
Exploit probability—
Product
Linux Kernel
PublishedJan 19, 2021
First seenJan 19, 2021
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 5.10.8 | — |
| fedoraproject fedora | 33 | — |
| debian debian_linux | 9.0 | — |
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