CVE-2018-17159

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Freebsd

PublishedDec 4, 2018

First seenDec 4, 2018

How to fix

Update

freebsd freebsd11.2 or later

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	v < 11.2, 11.2	11.2

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