Secunia

Some vulnerabilities have been reported in Novell eDirectory, which can be exploited by malicious people to conduct cross-site scripting attacks, cause a DoS (Denial of Service), or potentially compromise a vulnerable system.

1) An off-by-one error exists in the iMonitor component when processing HTTP requests. This can be exploited to cause a stack-based buffer overflow and crash an affected server via an HTTP request having a specially crafted "Accept-Language" header.

The vulnerability is confirmed in versions 8.8 SP3 and 8.8 SP3 FTF3. Other versions may also be affected.

2) An unspecified error when using multiple wild cards in RDNs can potentially be exploited to crash ndsd.

3) An unspecified error in the processing of LDAP packets can be exploited to cause a crash.

4) An error when processing LDAP requests can be exploited to render the eDirectory service unresponsive via a specially crafted search request with a NULL BaseDN.

5) Certain unspecified input is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

6) An unspecified error in dhost.exe can be exploited to cause a heap-based buffer overflow.

Successful exploitation may allow execution of arbitrary code.

7) An unspecified input validation error within the iMonitor component can be exploited to crash the eDirectory service.

8) An unspecified error when processing malformed LDAP packets can be exploited to crash the eDirectory service.

Solution
Update to version 8.8.5 FTF1 or 8.7.3.10 FTF2.

Provided and/or discovered by
1) Alin Rad Pop, Secunia Research
2, 3, 5, 6) Reported by the vendor
4) an anonymous person, reported via ZDI
7, 8) The vendor credits Offensive Security

Changelog
Further details available in Customer Area

Original Advisory
Secunia Research:
http://secunia.com/secunia_research/2009-13/

Novell:
http://www.novell.com/support/viewContent.do?externalId=3426981
http://www.novell.com/support/viewContent.do?externalId=7004721
http://www.novell.com/support/viewContent.do?externalId=7004718
http://www.novell.com/support/viewContent.do?externalId=3477912
http://www.novell.com/support/viewContent.do?externalId=7004702
http://www.novell.com/support/viewContent.do?externalId=7004703

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-09-075/

Deep Links
Links available in Customer Area