Application crash via missing buffer-device callback
Published Jun 16, 2022 · Updated Feb 13, 2025
NULL pointer dereference in Ghostscript 9.55.0 allows attackers to crash the application by processing crafted high-bit-depth input. The gx_default_create_buf_device buffer allocator selects mem_x_device above 64 bits per pixel, then calls its undefined init_device_procs callback. Exploitation requires a user or automated workflow to open attacker-controlled input, and the demonstrated consequence is process termination.
Summary
What happened
NULL pointer dereference in Ghostscript 9.55.0 allows attackers to crash the application by processing crafted high-bit-depth input. The gx_default_create_buf_device buffer allocator selects mem_x_device above 64 bits per pixel, then calls its undefined init_device_procs callback. Exploitation requires a user or automated workflow to open attacker-controlled input, and the demonstrated consequence is process termination.
The record
- CVE
- CVE-2022-2085
- Published
- Jun 16, 2022
- Updated
- Feb 13, 2025
- Vendor
- Artifex Software, Inc.
- Product
- Ghostscript
- Classifications
- CWE-476, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 16, 2022CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record 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=Affects in Ghostscript v9.55.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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