Heap-buffer-overflow in ghostscript: s_PFBD_process

ghostscript Updated 02 Oct 2025

Summary

02/05/2022

Disclosed on

MEDIUM

Severity

Yes i

Fix available

Medium

Severity

Not published

CVSS Score

OSV-2022-390: Heap-buffer-overflow in s_PFBD_process. Affects ghostscript versions >= 75fbddf52051987287e62d13c659eb73ba16982f, < 12532548a94c94821da0238b84c04b918659eb4a. Fixed in 12532548a94c94821da0238b84c04b918659eb4a. How to fix ↓

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Background

Ghostscript is an open-source interpreter for the PostScript language and the PDF file format. It is widely used for rendering and converting documents. The s_PFBD_process function in Ghostscript is responsible for processing font data. This vulnerability allows for a heap-buffer-overflow, which can lead to a crash or potential code execution.

Vulnerability Detail

The vulnerability occurs due to a heap-buffer-overflow in the s_PFBD_process function of Ghostscript. An attacker can exploit this issue by providing a specially crafted font file, which triggers the overflow when processed by Ghostscript. This can result in a crash or potentially allow the attacker to execute arbitrary code on the affected system. The vulnerability has a medium severity rating.

How To Fix

Minimum fixed version

12532548a94c94821da0238b84c04b918659eb4a

This is the first release that contains the fix.

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Workaround

There is no known workaround for this vulnerability. It is recommended to apply the fix provided by updating Ghostscript to the fixed version.

Conclusion

In conclusion, the s_PFBD_process function in Ghostscript is vulnerable to a heap-buffer-overflow, which can result in a crash or potential code execution. Users should update their installations to the fixed version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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