CVE-2021-31684
HIGHCVSS 7.5/10EPSS 2.28%
Last modified
CVE-2021-31684 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.. EPSS estimates a 2.28% chance of exploitation in the next 30 days.
Description
A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Json-Smart Project | Json-Smart-V1 | >= 1.3, < 1.3.3 |
| Json-Smart Project | Json-Smart-V2 | >= 2.4, < 2.4.4 |
| Oracle | Utilities Framework | 4.4.0.0.0 |
| Oracle | Utilities Framework | 4.4.0.2.0 |
| Oracle | Utilities Framework | 4.4.0.3.0 |
References
- https://github.com/netplex/json-smart-v1/issues/10Issue Tracking, Third Party Advisory
- https://github.com/netplex/json-smart-v1/pull/11Patch, Third Party Advisory
- https://github.com/netplex/json-smart-v2/issues/67Exploit, Issue Tracking, Third Party Advisory
- https://github.com/netplex/json-smart-v2/pull/68Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://github.com/netplex/json-smart-v1/issues/10Issue Tracking, Third Party Advisory
- https://github.com/netplex/json-smart-v1/pull/11Patch, Third Party Advisory
- https://github.com/netplex/json-smart-v2/issues/67Exploit, Issue Tracking, Third Party Advisory
- https://github.com/netplex/json-smart-v2/pull/68Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31684?
A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.
How severe is CVE-2021-31684?
CVE-2021-31684 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-31684?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2021-31684?
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