Process crash via null dereference in Destroy
Published Feb 3, 2023 · Updated Mar 26, 2025
NULL pointer dereference in MojoJson 1.2.3 allows attackers to crash a consuming process through malformed JSON input. The C Destroy function recursively processes a malformed parse tree and reads address zero while releasing its values. A consuming application must pass attacker-controlled JSON to Parse and then call Destroy; the public evidence establishes a process crash but does not demonstrate arbitrary code execution.
Summary
What happened
NULL pointer dereference in MojoJson 1.2.3 allows attackers to crash a consuming process through malformed JSON input. The C Destroy function recursively processes a malformed parse tree and reads address zero while releasing its values. A consuming application must pass attacker-controlled JSON to Parse and then call Destroy; the public evidence establishes a process crash but does not demonstrate arbitrary code execution.
The record
- CVE
- CVE-2023-23087
- Published
- Feb 3, 2023
- Updated
- Mar 26, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-476
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Feb 3, 2023CVE publishedPublication date reported by the CVE source.
- Mar 26, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- Malformed JSON Destroy crash reproducerproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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