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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> Denial of Service >> FreeBSD nfsd Malformed NFS Mount Request Denial of Service Vulnerability

FreeBSD nfsd Malformed NFS Mount Request Denial of Service Vulnerability

Vulnerability Assessment Summary Tries to crash remote FreeBSD host Detailed Explanation for this Vulnerability Assessment Summary : The remote host is affected by a denial of service vulnerability. Description : The NFS server on the remote host appears to be one from FreeBSD that causes a kernel panic when it receives a malformed NFS mount request via TCP. An unauthenticated remote attacker can leverage this flaw to crash the remote host. See also : http://lists.immunitysec.com/pipermail/dailydave/2006-February/002982.html ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:10.nfs.asc Solution : Use a firewall to restrict access to the NFS server or upgrade / patch the affected system as described in the vendor advisory above. Network Security Threat Level: Medium / CVSS Base Score : 5 (AV:R/AC:L/Au:NR/C:N/A:C/I:N/B:A) Networks Security ID: 16838 Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security

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