Sun Solaris tcp_fuse_rcv_drain() denial of service

solaris-tcp-dos (29630) The risk level is classified as MediumMedium Risk

Description:

Sun Solaris is vulnerable to a denial of service, caused by an unspecified error in the tcp_fuse_rcv_drain() function. A local attacker could exploit this vulnerability using TCP loopback connections which are connected on the same system to cause a system panic, resulting in a denial of service.

*CVSS:

Base Score: 3.5
  Access Vector: Local
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 2.6
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to Sun Alert ID: 102667 for patch, upgrade, or suggested workaround information. See References.

References:

  • Sun Alert ID: 102667: Security Vulnerability in the Solaris 10 TCP Fusion Code May Lead to a System Panic, Resulting in a Denial of Service (DoS).
  • ASA-2006-236: Sun Alert Notifications from Sun Weekly Report dated Oct 21 20
  • BID-20587: Sun Solaris TCP Fusion Local Denial of Service Vulnerability
  • CVE-2006-5396: The tcp_fuse_rcv_drain function in the Sun Solaris 10 kernel before 20061017, when TCP Fusion is enabled, allows local users to cause a denial of service (system crash) via a TCP loopback connection with both endpoints on the same system.
  • SA22453: Sun Solaris TCP Fusion Local Denial of Service
  • SECTRACK ID: 1017082: Solaris tcp_fuse_rcv_drain() Bug Lets Local Users Deny Service
  • VUPEN/ADV-2006-4080: Sun Solaris tcp_fuse_rcv_drain() Function Local Denial of Service Vulnerability

Platforms Affected:

  • Sun Solaris 10 x86
  • Sun Solaris 10 SPARC

Reported:

Oct 17, 2006

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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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