CVE-2024-28854

Slow loris vulnerability with default configuration in tls-listener

tls-listener is a rust lang wrapper around a connection listener to support TLS. With the default configuration of tls-listener, a malicious user can open 6.4 `TcpStream`s a second, sending 0 bytes, and can trigger a DoS. The default configuration options make any public service using `TlsListener::new()` vulnerable to a slow-loris DoS attack. This impacts any publicly accessible service using the default configuration of tls-listener in versions prior to 0.10.0. Users are advised to upgrade. Users unable to upgrade may mitigate this by passing a large value, such as `usize::MAX` as the parameter to `Builder::max_handshakes`.

Affected

tmccombs · tls-listener

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.97% chance of exploitation in the next 30 days, 61st percentile

Published

2024-03-15

Updated

2024-08-02

Proof-of-concept exploits (2)

• tmccombs/tls-listener/security/advisories/GHSA-2qph-qpvm-2qf7
• advisories/GHSA-2qph-qpvm-2qf7

Security advisories

• tmccombs/tls-listener/commit/d5a7655d6ea9e53ab57c3013092c5576da964bc4
• https://en.wikipedia.org/wiki/Slowloris_(computer_security)

References

• CVE Record
• NVD entry