VulnerabilityModified

CVE-2024-6759

When mounting a remote filesystem using NFS, the kernel did not sanitize remotely provided filenames for the path separator character, "/".

MEDIUM 5.3EPSS 0.68%

Does this matter?

Lower severity and a low EPSS score (0.68%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.68% probability · 50th percentile
CISA KEV: Not listed
Weakness: CWE-22
Affected: freebsd/freebsd
Source: secteam@freebsd.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.