CVE-2023-45288 is an uncontrolled resource consumption vulnerability in the HTTP/2 server implementations of Go net/http and golang.org/x/net/http2. Insufficient limits on CONTINUATION frames allow an attacker to force excessive header processing within a single stream. Headers exceeding MaxHeaderBytes are not retained in memory but are still parsed to maintain HPACK state, even though the request will ultimately be rejected. Huffman-encoded header data can impose substantially greater decoding costs on the receiver than transmission costs on the attacker, enabling CPU exhaustion and denial of service. The fix limits excess header-frame processing before closing the connection.
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A vulnerability involving connection handling when excessive headers are received is addressed by the openSUSE 16 prometheus-blackbox_exporter security update. The description identifies a fix to connection closure but provides no further technical details or individually attributed exploitation evidence.
A denial-of-service vulnerability in golang.org/x/net HTTP/2 processing. Excessive CONTINUATION frames force endpoints to parse headers even after MaxHeaderBytes is exceeded. Huffman-encoded headers amplify processing costs. The fix limits excess header-frame processing before closing the connection.
A denial-of-service vulnerability in Go's HTTP/2 processing allows a remote attacker to force excessive header parsing using CONTINUATION frames, even after headers exceed MaxHeaderBytes. Huffman-encoded headers amplify processing costs. The plugin rates the vulnerability High, with a CVSS v3 base score of 7.5, and reports that exploits are available.
A vulnerability included in the referenced Alma Linux security advisory; no technical flaw details are provided.
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