Sun Solaris UDP RPC denial of service

solaris-udp-rpc-dos (11368) The risk level is classified as MediumMedium Risk

Description:

Sun Solaris is vulnerable to a denial of service attack, caused by improper memory allocation in response to UDP RPC (Remote Procedure Call) packets. A remote attacker could send malformed UDP RPC packets to the system to consume all available memory resources, which would cause the system to become unresponsive.


Consequences:

Denial of Service

Remedy:

Apply the appropriate patch for your system, as listed below. Refer to Sun Alert ID: 50626 for more information. See References.

SPARC:
Solaris 2.6: 105401-41
Solaris 7: 106942-24
Solaris 8: 108827-36
Solaris 9: 113319-04

Intel:
Solaris 2.6: 105402-41
Solaris 7: 106943-24
Solaris 8: 108828-37

References:

  • Sun Alert ID: 50626: Certain UDP RPC Packets May Cause a Denial of Service.
  • BID-6883: Sun Solaris UDP RPC Packet Denial of Service Vulnerability
  • CVE-2003-1079: Unknown vulnerability in UDP RPC for Solaris 2.5.1 through 9 for SPARC, and 2.5.1 through 8 for x86, allows remote attackers to cause a denial of service (memory consumption) via certain arguments in RPC calls that cause large amounts of memory to be allocated.
  • OSVDB ID: 15145: Solaris UDP RPC Malformed RPC Call Remote DoS
  • SA8092: Sun Solaris UDP RPC Packet DoS
  • SECTRACK ID: 1006131: Sun Solaris rpcbind Bug Lets Remote Users Deny Service on the System

Platforms Affected:

  • Sun Solaris 2.5.1
  • Sun Solaris 2.5.1 x86
  • Sun Solaris 2.6
  • Sun Solaris 2.6 x86
  • Sun Solaris 7.0 x86
  • Sun Solaris 7.0
  • Sun Solaris 8 x86
  • Sun Solaris 8.0
  • Sun Solaris 9 SPARC

Reported:

Feb 18, 2003

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