Novell eDirectory NMAS BerDecodeLoginDataRequeset() denial of service
| novell-berdecodelogindatarequeset-dos (29963) |  Low Risk |
Description:
Novell eDirectory is vulnerable to a denial of service attack, caused by improper handling of pointers by the BerDecodeLoginDataRequeset() function in the Novell Modular Authentication System (NMAS) module. A remote attacker could send a specially-crafted login request to cause the server to stop responding.
*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:
Upgrade to the latest version of Novell eDirectory (2.0.3 or later of Security Services), available from the Novell Web site. See References.
References:
- iDefense Labs PUBLIC ADVISORY: 10.27.06: Novell eDirectory NMAS BerDecodeLoginDataRequeset DoS Vulnerability.
- Novell Downloads Web site: Novell Downloads.
- BID-20842: Novell eDirectory NMAS BerDecodeLoginDataRequeset Denial of Service Vulnerability
- CVE-2006-4521: The BerDecodeLoginDataRequest function in the libnmasldap.so NMAS module in Novell eDirectory 8.8 and 8.8.1 before the Security Services 2.0.3 patch does not properly increment a pointer when handling certain input, which allows remote attackers to cause a denial of service (invalid memory access) via a crafted login request.
- SA22660: Novell eDirectory NMAS Denial Of Service Vulnerability
- SECTRACK ID: 1017140: Novell eDirectory BerDecodeLoginDataRequeset() Pointer Error Lets Remote Users Deny Service
- VUPEN/ADV-2006-4293: Novell eDirectory BerDecodeLoginDataRequest() Denial Of Service Vulnerability
Platforms Affected:
- Novell eDirectory 8.8
- Novell eDirectory 8.8.1
Reported:
Nov 01, 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.