Description (CNA)
In Apache CXF, the parser for multipart/MTOM attachment part headers did not fully enforce the configured attachment-max-header-size (default 300 characters) and attachment-headers-max-count (default 500) limits. The size limit was applied only to each physical line, not to a header value built from continuation lines or to the combined values of a repeated header. The count limit was checked against the number of distinct header names, not the total number of header lines. A remote, unauthenticated attacker could send a multipart request with very large folded or repeated part headers. The server would then allocate memory without bound, causing a denial of service. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Apache Software Foundation / Apache CXF | affected 4.2.0 before 4.2.4; affected 4.0.0 before 4.1.9; affected 0 before 3.6.13 |
CWE
No CWE identifiers supplied.
References
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.