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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


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


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.


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


Apply a patch

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

Vendor Information


Adobe Affected

Updated:  November 02, 2000



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.


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.

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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: 9

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