Novell eDirectory NCP functionality denial of service
| novell-edirectory-ncp-dos (33921) |  Medium Risk |
Description:
Novell eDirectory is vulnerable to a denial of service, caused by an error in the NCP functionality. By sending multiple specially-crafted fragmented requests, a remote attacker could force the daemon to stop receiving requests and consume a large amount of disk space, which would crash the eDirectory service.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Refer to Novell Security Alert 3924657 for patch, upgrade, or suggested workaround information. See References.
References:
- iDefense Labs PUBLIC ADVISORY: 04.26.07: Novell eDirectory NCP Fragment Denial of Service Vulnerability.
- Novell Security Alert 3924657: Security Vulnerability: NCP Fragment Denial of Service.
- BID-23685: Novell EDirectory NCP Fragment Length Denial Of Service Vulnerability
- CVE-2006-4520: ncp in Novell eDirectory before 8.7.3 SP9, and 8.8.x before 8.8.1 FTF2, does not properly handle NCP fragments with a negative length, which allows remote attackers to cause a denial of service (daemon crash) when the heap is written to a log file.
- SECTRACK ID: 1017972: Novell eDirectory NCP Fragment Processing Bug Lets Remote Users Deny Service
- VUPEN/ADV-2007-1550: Novell eDirectory NCP Functionality Fragmented Request Denial of Service Vulnerability
Platforms Affected:
- Novell eDirectory 8.7.3.8
- Novell eDirectory 8.8
- Novell eDirectory 8.8.1
Reported:
Apr 26, 2007
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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.