Threat Encyclopedia

FreeBSD.NFS.Server.NFSv4.Opcode.Out.of.Bounds.Write

description-logoDescription

This indicates an attack attempt to exploit an Out Of Bounds Write vulnerability in Free BSD.
A remote attacker, who has access to a NFS file system, could exploit this vulnerability by sending a crafted NSFv4 request to the target server. Successful exploitation would likely cause denial-of-service conditions however, in the worst case, arbitrary code execution may be possible.

affected-products-logoAffected Products

FreeBSD Project FreeBSD 11.0-Stable prior to r340854
FreeBSD Project FreeBSD 11.2-Releng prior to r341088

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

recomended-action-logoRecommended Actions

Refer to the vendor supplied advisory for updates:
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:13.nfs.asc

CVE References

CVE-2018-17157