Intrusion PreventionFreeBSD.NFS.Server.NFSv4.Opcode.Out.of.Bounds.Write
Description
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
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.
Recommended Actions
Refer to the vendor supplied advisory for updates:
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:13.nfs.asc
Telemetry
Coverage
| IPS (Regular DB) | |
| IPS (Extended DB) |
Version Updates
| Date | Version | Detail |
|---|---|---|
| 2019-06-06 | 14.627 | Severity:high:critical |
| 2019-04-23 | 14.598 | Default_action:pass:drop |
| 2019-04-10 | 14.590 |
| ID | 47644 |
| Created | Apr 10, 2019 |
| Updated | Nov 03, 2020 |
| Risk |
|
| CVE ID | CVE-2018-17157 |
| Exploit Prediction Score | 53.1% |
| Default Action | drop |
| Active | |
| Affected OS | BSD |
| Affected App | Other |