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Ghostscript Heap Corruption in TrueType bytecode interpreter

Vulnerability Note VU#644319

Original Release Date: 2010-08-24 | Last Revised: 2010-12-06

Overview

The TrueType bytecode interpreter which is a part of Ghostscript is prone to heap corruption.

Description

Ghostscript includes a TrueType bytecode interpreter which is prone to an off by one bug which causes heap corruption. Further details can be found in the Ghostscript Bug #691044, Ghostscript r10602 commit statement and Toucan System's TSSA-2010-01 advisory.

Impact

An attacker may use a specially crafted document with a malformed TrueType font to cause a denial of service condition or execute arbitrary code.

Solution

Upgrade to Ghostscript 8.71 or newer.

Vendor Information

644319
 

CVSS Metrics

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References

Acknowledgements

Thanks to Jonathan Brossard for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

CVE IDs: CVE-2009-3743
Severity Metric: 0.45
Date Public: 2010-08-24
Date First Published: 2010-08-24
Date Last Updated: 2010-12-06 15:32 UTC
Document Revision: 35

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