GitHub Advisoryadvisory · crates.io

GHSA-qg5g-gv98-5ffh rustls network-reachable panic in `Acceptor::accept`

MEDIUM Published 2024-11-25 Modified 2024-11-25 Official page ↗
Ecosystem
crates.io
Packages
rustls
Severity
Moderate
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
Reviewed
2024-11-25

Affected packages

• crates.io rustls: >= 0.23.13, < 0.23.18 → fixed in 0.23.18

Description

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.

References