Sun Solaris TCP denial of service

sunsolaris-tcp-dos (42264) The risk level is classified as MediumMedium Risk

Description:

Sun Solaris is vulnerable to a denial of service, caused by an error within the TCP implementation. By flooding the system with TCP SYN packets, a remote attacker could cause the network connection to time out before making a connection or consume an overly large amount of CPU resources, resulting in a denial of service.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to Sun Alert ID: 200864 for patch, upgrade or suggested workaround information. See References.

References:

  • NORTEL BULLETIN ID: 2008008915, Rev 1: Nortel Response to Sun Alert 200864 - Solaris DoS Under a TCP "SYN Flood" Attack.
  • Sun Alert ID: 200864: Security Vulnerability in the TCP Implementation of Solaris Systems May Allow a Denial of Service When Accepting New Connections While Undergoing a TCP "SYN Flood" Attack .
  • ASA-2008-206: Security Vulnerability in the TCP Implementation of Solaris Systems (Sun 200864)
  • BID-29089: Sun Solaris TCP SYN Flooding Remote Denial of Service Vulnerability
  • CVE-2008-2121: The TCP implementation in Sun Solaris 8, 9, and 10 allows remote attackers to cause a denial of service (CPU consumption and new connection timeouts) via a TCP SYN flood attack.
  • OSVDB ID: 44936: Solaris TCP Implementation SYN Flood Remote DoS
  • SA30125: Avaya CMS Solaris TCP Implementation SYN Flood Denial of Service
  • SA30131: Sun Solaris TCP Implementation SYN Flood Denial of Service
  • SECTRACK ID: 1019989: Solaris TCP SYN Attack Protection Bug Lets Remote Users Deny Service

Platforms Affected:

  • Sun Solaris 10 x86
  • Sun Solaris 10 SPARC
  • Sun Solaris 8 SPARC
  • Sun Solaris 8 x86
  • Sun Solaris 9 SPARC
  • Sun Solaris 9 x86

Reported:

May 06, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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