CVE-2023-3223
HIGHCVSS 7.5/10EPSS 2.04%
Last modified
CVE-2023-3223 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. EPSS estimates a 2.04% chance of exploitation in the next 30 days.
Description
A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null.
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 |
|---|---|---|
| Redhat | Undertow | < 2.2.24 |
| Redhat | Openshift Container Platform | 4.11 |
| Redhat | Openshift Container Platform | 4.12 |
| Redhat | Openshift Container Platform For Ibm Linuxone | 4.9 |
| Redhat | Openshift Container Platform For Ibm Linuxone | 4.10 |
| Redhat | Openshift Container Platform For Power | 4.9 |
| Redhat | Openshift Container Platform For Power | 4.10 |
| Redhat | Jboss Enterprise Application Platform Text-Only Advisories | All versions |
| Redhat | Single Sign-On | All versions |
| Redhat | Single Sign-On | 7.6 |
| Redhat | Jboss Enterprise Application Platform | 7.4 |
References
- https://access.redhat.com/errata/RHSA-2023:4505Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4506Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4507Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4509Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4918Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4919Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4920Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4921Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4924Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-3223Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2209689Issue Tracking, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4505Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4506Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4507Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4509Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4918Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4919Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4920Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4921Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:4924Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-3223Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2209689Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-3223?
A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null.
How severe is CVE-2023-3223?
CVE-2023-3223 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.04% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3223?
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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Scan your code nowSource: NVD / NIST