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IBM AIX nslookup buffer overflow in lex routines

Vulnerability Note VU#182777

Original Release Date: 2001-09-26 | Last Revised: 2001-09-26

Overview

There is a problem with the nslookup program related to the handling of long strings.

Description

This problem is reported to be the result of incorrect bounds checking on the part of the lex routines used in nslookup. This vulnerability is mentioned in an IBM advisory as being exploited by attackers.

Impact

The impact of this vulnerability is not clear. It may be possible for local attackers to gain root privileges on the vulnerable system.

Solution

Apply a Patch

IBM has released patches to correct this problem. For AIX version 4.3, system administrators should apply APAR#IX79909.

Vendor Information

182777
 
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IBM Affected

Updated:  September 26, 2001

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


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References

Acknowledgements

This document was written by Cory F. Cohen.

Other Information

CVE IDs: None
Severity Metric: 5.91
Date Public: 1998-07-06
Date First Published: 2001-09-26
Date Last Updated: 2001-09-26 18:04 UTC
Document Revision: 3

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