UNKNOWN WRITE Vulnerability in ghostscript

ghostscript Updated 02 Oct 2025

Summary

20/08/2022

Disclosed on

HIGH

Severity

Yes i

Fix available

High

Severity

Not published

CVSS Score

OSV-2022-757: UNKNOWN WRITE in pdfi_free_array. Affects ghostscript versions >= 461818d4af16839b9cd8c68320fc224f66d76691, < 1d8d9605e251d1b51281efe5ef8db07640e49203. Fixed in 1d8d9605e251d1b51281efe5ef8db07640e49203. 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 PDF files. This vulnerability affects the ghostscript package and can lead to an UNKNOWN WRITE crash. The vulnerability was reported through the OSS-Fuzz project.

Vulnerability Detail

The vulnerability occurs in the pdfi_free_array function of ghostscript. It can be triggered by a specific input, leading to an UNKNOWN WRITE crash. The crash state involves the pdfi_free_object and pdfi_clear_to_mark functions. The exact cause and impact of the vulnerability are not provided in the report.

How To Fix

Minimum fixed version

1d8d9605e251d1b51281efe5ef8db07640e49203

This is the first release that contains the fix.

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Workaround

No workaround is mentioned in the report.

Conclusion

The UNKNOWN WRITE vulnerability in ghostscript can lead to a crash, but the exact impact and cause are not provided in the report. It is recommended to update the ghostscript package to a fixed version. For further support on vulnerability remediation, you can contact DevNack.com.

See every vulnerability recorded for ghostscript →