Undertow: outofmemoryerror due to @multipartconfig handling
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Red Hat would like to thank Keke Lian & Haoran Zhao (SecSys Lab) for reporting this issue.
References
- https://access.redhat.com/errata/RHSA-2023:4505
- https://access.redhat.com/errata/RHSA-2023:4506
- https://access.redhat.com/errata/RHSA-2023:4507
- https://access.redhat.com/errata/RHSA-2023:4509
- https://access.redhat.com/errata/RHSA-2023:4918
- https://access.redhat.com/errata/RHSA-2023:4919
- https://access.redhat.com/errata/RHSA-2023:4920
- https://access.redhat.com/errata/RHSA-2023:4921
- https://access.redhat.com/errata/RHSA-2023:4924
- https://access.redhat.com/errata/RHSA-2023:7247
- https://access.redhat.com/security/cve/CVE-2023-3223
- https://bugzilla.redhat.com/show_bug.cgi?id=2209689
- https://security.netapp.com/advisory/ntap-20231027-0004/
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Timeline
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.