CVE-2018-17159 Information

Description

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5 the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.

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