CVE-2018-17158 Information

Description

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5 an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/106192 http://www.securitytracker.com/id/1042164 https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/ https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5