CVE-2021-3178

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

Risk Information

Base Score

6.5

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

EPSS Score

Exploitation Probability

0.156

Associated Vulnerability

Vulnerability	OS Platform
Linux kernel for OEM systems (USN-4753-1) linux-image-5.10.0-1014-oem_5.10.0-1014.15_amd64.deb	Linux
kernel Security Update (ALAS-2021-1600) kernel-livepatch-4.14.219-161.340-1.0-0.amzn2.x86_64.rpm	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234