Application crash via unchecked R2007 back-reference copy
Published Jun 22, 2022 · Updated Aug 3, 2024
Stack overflow in GNU LibreDWG 0.12.4.4608 allows context-dependent attackers to crash DWG-processing applications via a crafted DWG file. During R2007 header decompression, copy_bytes copies a length-controlled back-reference into the stack-resident file_header buffer without first enforcing its destination boundary. Processing an attacker-supplied R2007 DWG is required; the published proof of concept demonstrates an application abort, not code execution.
Summary
What happened
Stack overflow in GNU LibreDWG 0.12.4.4608 allows context-dependent attackers to crash DWG-processing applications via a crafted DWG file. During R2007 header decompression, copy_bytes copies a length-controlled back-reference into the stack-resident file_header buffer without first enforcing its destination boundary. Processing an attacker-supplied R2007 DWG is required; the published proof of concept demonstrates an application abort, not code execution.
The record
- CVE
- CVE-2022-33034
- Published
- Jun 22, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 22, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
- copy_bytes_sof proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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