search menu icon-carat-right cmu-wordmark

CERT Coordination Center

Adobe Acrobat products have buffer overflow in the CIDFont /Registry and /Ordering entries

Vulnerability Note VU#31554

Original Release Date: 2000-11-02 | Last Revised: 2000-12-13

Overview

By embedding malicious code in a Portable Document Format (PDF) file, an attacker can cause arbitrary code to execute on the victim's system.

Description

The Adobe Acrobat PDF file format facility for specifying fonts contains buffer overflows in the /Registry and /Ordering entries. Each of these entries are not properly bounds checked, allowing at attacker to construct a malicious document which overflows an internal buffer and allows the execution of arbitary code.

These entries are in the CIDSystemInfo dictionary. CID stands for "character identifier". The /Registry entry is for specifying which organization issued the character collection. For example "Adobe". The /Ordering entry is supposed to uniquely identify a character collection issued by the registry. An example could be "Japan1". More information about the PDF document format is available in the "Portable Document Format Reference Manual" from Adobe.

Impact

An attacker could execute arbitrary code on systems running a vulnerable Adobe product when the user views a malicious PDF file.

Solution

Apply a patch

Adobe released Version 4.05 Update 2, which corrects this problem:

Vendor Information

31554
 
Affected   Unknown   Unaffected

Adobe

Updated:  November 02, 2000

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

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

Addendum

Adobe has a statement regarding this vulnerability at:


Adobe Acrobat Version 4.05 Update 2 corrects the problem.

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


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Credit

This document was written by Cory F Cohen.

Other Information

CVE IDs: CVE-2000-0713
Severity Metric: 5.00
Date Public: 2000-08-03
Date First Published: 2000-11-02
Date Last Updated: 2000-12-13 00:05 UTC
Document Revision: 8

Sponsored by the Department of Homeland Security Office of Cybersecurity and Communications.