CVE-2023-3223
Undertow vulnerable to denial of service
7.5
HIGH
CVSS 3.1
EPSS 0.65%
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.
How to fix CVE-2023-3223
To remediate CVE-2023-3223, upgrade the affected package to a fixed version below.
- —upgrade to 2.3.18-1 or later
- —upgrade to 2.2.24.Final or later
Is CVE-2023-3223 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.3.18-1
- from 0, < 2.2.24.Final
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |