rustls network-reachable panic in `Acceptor::accept`
A bug introduced in rustls 0.23.13 leads to a panic if the received TLS ClientHello is fragmented. Only servers that use `rustls::server::Acceptor::accept()` are affected. Servers that use `tokio-rustls`'s `LazyConfigAcceptor` API are affected. Servers that use `tokio-rustls`'s `TlsAcceptor` API are not affected. Servers that use `rustls-ffi`'s `rustls_acceptor_accept` API are affected.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2024-11738US | high7.5 | — | ||
A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message. | ||||
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references
External citations — patches, advisories, analysis.
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