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.
[
{
"product": "Apache James",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "3.6.2",
"status": "affected",
"version": "Apache James",
"versionType": "custom"
}
]
}
]