Application crash via unchecked data-path copy
Published Mar 16, 2023 · Updated Feb 26, 2025
Buffer overflow in Liblouis 3.24.0 allows remote attackers to crash applications that pass an overlong path to lou_setDataPath. lou_setDataPath copies path with strcpy into the static 2,048-byte dataPath buffer without checking its length, so inputs at least MAXSTRING bytes overwrite global storage. Remote reachability depends on a consuming application passing attacker-controlled path data to this API; the demonstrated consequence is process termination.
Summary
What happened
Buffer overflow in Liblouis 3.24.0 allows remote attackers to crash applications that pass an overlong path to lou_setDataPath. lou_setDataPath copies path with strcpy into the static 2,048-byte dataPath buffer without checking its length, so inputs at least MAXSTRING bytes overwrite global storage. Remote reachability depends on a consuming application passing attacker-controlled path data to this API; the demonstrated consequence is process termination.
The record
- CVE
- CVE-2023-26767
- Published
- Mar 16, 2023
- Updated
- Feb 26, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 16, 2023CVE publishedPublication date reported by the CVE source.
- Feb 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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
- lou_setDataPath AddressSanitizer proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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