Interpreter crash via execute parameter heap overflow
Published Jul 13, 2021 · Updated Aug 4, 2024
Out-of-bounds write in jsish before 3.0.18 allows remote attackers to crash the interpreter through a crafted execute parameter. The jsi_evalcode_sub function writes beyond a heap buffer while processing crafted script content, with the fault reported at src/jsiEval.c:1325. No authentication or user interaction is required, and the documented consequence is interruption of the process hosting the interpreter.
Summary
What happened
Out-of-bounds write in jsish before 3.0.18 allows remote attackers to crash the interpreter through a crafted execute parameter. The jsi_evalcode_sub function writes beyond a heap buffer while processing crafted script content, with the fault reported at src/jsiEval.c:1325. No authentication or user interaction is required, and the documented consequence is interruption of the process hosting the interpreter.
The record
- CVE
- CVE-2020-22907
- Published
- Jul 13, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 13, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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?
What conditions does exploitation require?
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.
Public exploit references
- jsish issue 16 proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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