Secunia Research: Novell eDirectory iMonitor "Accept-Language" Buffer Overflow

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                 Secunia Research 14/07/2009

• Novell eDirectory iMonitor "Accept-Language" Buffer Overflow -

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Table of Contents

Affected Software…1
Severity…2
Vendor's Description of Software…3
Description of Vulnerability…4
Solution…5
Time Table…6
Credits…7
References…8
About Secunia…9
Verification…10

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1) Affected Software

• Novell eDirectory 8.8 SP3 and 8.8 SP3 FTF3

NOTE: Other versions may also be affected.

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2) Severity

Rating: Less critical
Impact: Denial of Service
Where: Local network

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3) Vendor's Description of Software

"… Novell eDirectory is an LDAP directory service, and forms the
basis for many of the world's largest identity-management deployments.
Since its debut more than ten years ago, eDirectory has been trusted
for its scalability, compatibility, reliability, manageability and
security".

Product Link:
http://www.novell.com/products/edirectory/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Novell eDirectory,
which can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an off-by-one error in the iMonitor
component when processing HTTP requests. This can be exploited to
cause a stack-based buffer overflow via an HTTP request having a
specially crafted "Accept-Language" header.

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5) Solution

Update to version 8.8 SP5.

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6) Time Table

05/03/2009 - Vendor notified.
11/03/2009 - Vendor response.
14/07/2009 - Public disclosure due to the release of 8.8 SP5.

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7) Credits

Discovered by Alin Rad Pop, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2009-0192 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
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http://secunia.com/advisories/mailing_lists/

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10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2009-13/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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