Apache James prior to release 3.6.3 and 3.7.1 is vulnerable to a buffering attack relying on the use of the STARTTLS command. Fix of CVE-2021-38542, which solved similar problem fron Apache James 3.6.1, is subject to a parser differential and do not take into account concurrent requests.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.apache.james:james-server(Maven) | 0 | 3.6.3 | N/A |
| org.apache.james:james-server(Maven) | 3.7.0 | 3.7.1 | N/A |
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