title: Apache HTTP Server: HTTP/2 DoS by memory exhaustion on endless continuation frames
description: HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.
problem types: CWE-400 Uncontrolled Resource Consumption
affected:
{
defaultStatus: unaffected
product: Apache HTTP Server
vendor: Apache Software Foundation
versions:
lessThanOrEqual: 2.4.58, status: affected, version: 2.4.17, versionType: semver
}
metrics:
other: [
content: {'text': 'moderate'}
type: Textual description of severity
]