Sun Solaris NFS denial of service caused by lockd(1M) daemon

solaris-nfs-lockd-dos (10394) The risk level is classified as MediumMedium Risk


Sun Solaris is vulnerable to a denial of service attack in the Network File System (NFS). A local or remote attacker with limited system privileges could kill the lockd(1M) daemon to cause a denial of service against NFS.


Denial of Service


Apply the appropriate patch for your system, as listed in Sun Alert ID: 47815. See References.


  • Sun Alert ID: 47815: NFS Denial of Service can be Caused by a Client Application Killing the lockd(1M) Daemon.
  • BID-5986: Solaris NFS lockd Remote Denial of Service Vulnerability
  • BID-599: Multiple Vendor Wu-Ftpd Buffer Overflow Vulnerability
  • CVE-2002-1228: Unknown vulnerability in NFS on Solaris 2.5.1 through Solaris 9 allows an NFS client to cause a denial of service by killing the lockd daemon.
  • OSVDB ID: 8709: Solaris NFS Client lockd Daemon DoS
  • US-CERT VU#855635: Sun Solaris lockd(1M) daemon vulnerable to DoS

Platforms Affected:

  • Sun Solaris 2.5.1
  • Sun Solaris 2.6
  • Sun Solaris 7.0
  • Sun Solaris 8
  • Sun Solaris 9


Oct 16, 2002

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