HTTP/2: memory exhaustion due to CONTINUATION frame flood
概要
HTTP/2: memory exhaustion due to CONTINUATION frame flood
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Envoy is a cloud-native, open-source edge and service proxy. In versions 1.29.0 and 1.29.1, theEnvoy HTTP/2 protocol stack is vulnerable to the flood of CONTINUATION frames. Envoy's HTTP/2 codec does not reset a request when header map limits have been exceeded. This allows an attacker to send an sequence of CONTINUATION frames without the END_HEADERS bit set causing unlimited memory consumption. This can lead to denial of service through memory exhaustion. Users should upgrade to versions 1.29.2 to mitigate the effects of the CONTINUATION flood. Note that this vulnerability is a regression in Envoy version 1.29.0 and 1.29.1 only. As a workaround, downgrade to version 1.28.1 or earlier or disable HTTP/2 protocol for downstream connections.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
影響パッケージ
参照URL
- advisory github.com
- advisory openwall.com
- patch github.com
- web openwall.com
- web nvd.nist.gov
- web kb.cert.org