Apple iChat AIM URI handler format string vulnerability

2007-02-16T00:00:00
ID VU:794752
Type cert
Reporter CERT
Modified 2007-03-05T17:01:00

Description

Overview

Apple iChat contains a format string vulnerability. This vulnerability may allow a remote, unauthenticated attacker to execute arbitary code.

Description

The Apple iChat AIM URI handler fails to properly sanitize user-controlled data that is supplied to a formatted output function. This may allow a format string vulnerability to occur.

Depending on the user's browser, an attacker may be able to exploit this vulnerability by persuading a user to access a specially crafted web page. Some web browsers, such as Safari, automatically launch iChat to handle certain types of URIs. So, if a Safari user accesses a web page containing a specially crafted URI, iChat will be launched to process that URI. This may trigger the vulnerability.


Impact

A remote, unauthenticated attacker may be able to execute arbitrary code.


Solution

Apply an update

Apple has addressed this issue with Apple Security Update 2007-002.


Vendor Information

794752

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Apple Computer, Inc. __ Affected

Updated: February 16, 2007

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

Refer to <http://docs.info.apple.com/article.html?artnum=305102>.

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://projects.info-pull.com/moab/MOAB-20-01-2007.html>
  • <http://docs.info.apple.com/article.html?artnum=305102>
  • <http://secunia.com/advisories/24198/>
  • <http://securitytracker.com/alerts/2007/Feb/1017661.html>
  • <http://www.securityfocus.com/bid/22146>

Acknowledgements

This vulnerability was publicly disclosed as part of the Month of Apple Bugs project.

This document was written by Jeff Gennari.

Other Information

CVE IDs: | CVE-2007-0021
---|---
Severity Metric: | 11.85
Date Public: | 2007-01-20
Date First Published: | 2007-02-16
Date Last Updated: | 2007-03-05 17:01 UTC
Document Revision: | 25