Description

When mounting a remote filesystem using NFS, the kernel did not sanitize remotely provided filenames for the path separator character, "/". This allows readdir(3) and related functions to return filesystem entries with names containing additional path components. The lack of validation described above gives rise to a confused deputy problem. For example, a program copying files from an NFS mount could be tricked into copying from outside the intended source directory, and/or to a location outside the intended destination directory.

Weaknesses 1

Affected Products 19

References 2

• security.freebsd.org https://security.freebsd.org/advisories/FreeBSD-SA-24:07.nfsclient.asc
  Vendor Advisory
• security.netapp.com https://security.netapp.com/advisory/ntap-20240816-0009/

Remediation