AbsoluteTelnet vulnerable to buffer overflow via overly long window title

2003-02-07T00:00:00
ID VU:666073
Type cert
Reporter CERT
Modified 2003-02-07T20:58:00

Description

Overview

A remotely exploitable buffer overflow vulnerability exists in AbsoluteTelnet. This vulnerability may allow a malicious server operator to execute arbitrary code on a vulnerable client.

Description

AbsoluteTelnet is a terminal client. A remotely exploitable buffer overflow vulnerability exists in the code that sets the terminal titlebar. This vulnerability may allow a malicious server operator to execute arbitrary code. An exploit for this vulnerability is publicly available.


Impact

A malicious server operator may be able to execute arbitrary code on a host running AbsoluteTelnet.


Solution

Upgrade to AbsoluteTelnet version 2.12 RC10. For information on how to obtain 2.12 RC10, please see <http://www.celestialsoftware.net/telnet/beta_software.html>.


Vendor Information

666073

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Celestial Software __ Affected

Updated: February 07, 2003

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

Please see <http://www.celestialsoftware.net/telnet/beta_software.html>.

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

CVSS Metrics

Group | Score | Vector
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Base | |
Temporal | |
Environmental | |

References

  • <http://www.celestialsoftware.net/telnet/index.html>
  • <http://kokanins.homepage.dk/absolutetelnet.txt>

Acknowledgements

This vulnerability was discovered by Knud Erik Højgaard.

This document was written by Ian A Finlay.

Other Information

CVE IDs: | None
---|---
Severity Metric: | 22.20
Date Public: | 2003-02-06
Date First Published: | 2003-02-07
Date Last Updated: | 2003-02-07 20:58 UTC
Document Revision: | 10