CVE-2023-3223
HIGH severity · CVSS 7.5 · CWE-789
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2023:4505Advisory
- https://access.redhat.com/errata/RHSA-2023:4506Advisory
- https://access.redhat.com/errata/RHSA-2023:4507Advisory
- https://access.redhat.com/errata/RHSA-2023:4509Advisory
- https://access.redhat.com/errata/RHSA-2023:4918Advisory
- https://access.redhat.com/errata/RHSA-2023:4919Advisory
- https://access.redhat.com/errata/RHSA-2023:4920Advisory
- https://access.redhat.com/errata/RHSA-2023:4921Advisory