CVE-2018-15503
UnknownEPSS 2.27%
Last modified
CVE-2018-15503 is a vulnerability of currently unknown severity. The unpack implementation in Swoole version 4.0.4 lacks correct size checks in the deserialization process. An attacker can craft a serialized object to exploit this vulnerability and cause a SEGV.. EPSS estimates a 2.27% chance of exploitation in the next 30 days.
Description
The unpack implementation in Swoole version 4.0.4 lacks correct size checks in the deserialization process. An attacker can craft a serialized object to exploit this vulnerability and cause a SEGV.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Swoole | Swoole | 4.0.4 |
References
- https://github.com/swoole/swoole-src/commit/4cdbce5d9bf2fe596bb6acd7d6611f9e8c253a76Patch, Vendor Advisory
- https://github.com/swoole/swoole-src/issues/1882Issue Tracking, Vendor Advisory
- https://x-c3ll.github.io/posts/swoole-deserialization-cve-2018-15503/Technical Description, Third Party Advisory
- https://github.com/swoole/swoole-src/commit/4cdbce5d9bf2fe596bb6acd7d6611f9e8c253a76Patch, Vendor Advisory
- https://github.com/swoole/swoole-src/issues/1882Issue Tracking, Vendor Advisory
- https://x-c3ll.github.io/posts/swoole-deserialization-cve-2018-15503/Technical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-15503?
The unpack implementation in Swoole version 4.0.4 lacks correct size checks in the deserialization process. An attacker can craft a serialized object to exploit this vulnerability and cause a SEGV.
How severe is CVE-2018-15503?
Severity scoring for CVE-2018-15503 is pending analysis. The EPSS model estimates a 2.27% probability of exploitation in the next 30 days.
How do I fix CVE-2018-15503?
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.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-15503?
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Scan your code nowSource: NVD / NIST