Memory corruption via unchecked XRef field widths
Published Nov 10, 2024 · Updated Nov 12, 2024
Buffer overflow in Artifex Software Ghostscript before 10.04.0 allows attackers to corrupt memory via a crafted PDF XRef stream. The PDF interpreter accepts W-array field widths beyond its supported limits while using a narrower field-width accumulator, allowing read_xref_stream_entries to overrun a buffer. Exploitation requires the crafted PDF to be opened or processed by an application that embeds or invokes Ghostscript, resulting in a process crash or memory corruption.
Summary
What happened
Buffer overflow in Artifex Software Ghostscript before 10.04.0 allows attackers to corrupt memory via a crafted PDF XRef stream. The PDF interpreter accepts W-array field widths beyond its supported limits while using a narrower field-width accumulator, allowing read_xref_stream_entries to overrun a buffer. Exploitation requires the crafted PDF to be opened or processed by an application that embeds or invokes Ghostscript, resulting in a process crash or memory corruption.
The record
- CVE
- CVE-2024-46952
- Published
- Nov 10, 2024
- Updated
- Nov 12, 2024
- Vendor
- Artifex Software, Inc.
- Product
- Ghostscript
- Classifications
- CWE-120, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 10, 2024CVE publishedPublication date reported by the CVE source.
- Nov 12, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=10.04.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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