Novell eDirectory dhost.exe denial of service

novell-edirectory-dhost-dos (41787) The risk level is classified as LowLow Risk

Description:

Novell eDirectory is vulnerable to a denial of service, caused by an error in the dhost.exe service when processing Connection headers. By sending multiple HTTP requests containing specially-crafted "Connection" headers, a remote attacker could exploit this vulnerability to consume all available CPU resources, resulting in a denial of service.

Platforms Affected:

  • Novell, eDirectory 8.7.3.9
  • Novell, eDirectory 8.8.2

Remedy:

Refer to Novell Security Alert Document ID: 3829452 for patch, upgrade or suggested workaround information. See References.

Consequences:

Denial of Service

References:

  • Novell Security Alert Document ID: 3829452, Security Vulnerability - DoS via "Connection:" HTTP headers" at http://www.novell.com/support/viewContent.do?externalId=3829452.
  • BID-28757: Novell eDirectory HTTP 'Connection' Header Denial Of Service Vulnerability
  • CVE-2008-0927: dhost.exe in Novell eDirectory 8.7.3 before sp10 and 8.8.2 allows remote attackers to cause a denial of service (CPU consumption) via an HTTP request with (1) multiple Connection headers or (2) a Connection header with multiple comma-separated values. NOTE: this might be similar to CVE-2008-1777.
  • SA29805: Novell eDirectory "Connection" HTTP Header Processing Denial of Service
  • SECTRACK ID: 1019836: Novell eDirectory HTTP Header Processing Lets Remote Users Deny Service
  • VUPEN/ADV-2008-1217: Novell eDirectory HTTP Request Denial of Service Vulnerability

Reported:

Apr 11, 2008

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