Erlang/OTP is a set of libraries for the Erlang programming language. In versions prior to OTP-27.3.4 (for OTP-27), OTP-26.2.5.12 (for OTP-26), and OTP-25.3.2.21 (for OTP-25), Erlang/OTP SSH fails to enforce strict KEX handshake hardening measures by allowing optional messages to be exchanged. This allows a Man-in-the-Middle attacker to inject these messages in a connection during the handshake. This issue has been patched in versions OTP-27.3.4 (for OTP-27), OTP-26.2.5.12 (for OTP-26), and OTP-25.3.2.21 (for OTP-25).
Weakness
A feature, API, or function does not perform according to its specification.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Erlang | Ubuntu | devel | * |
| Erlang | Ubuntu | focal | * |
| Erlang | Ubuntu | jammy | * |
| Erlang | Ubuntu | noble | * |
| Erlang | Ubuntu | oracular | * |
| Erlang | Ubuntu | plucky | * |
| Erlang | Ubuntu | questing | * |
| Erlang | Ubuntu | upstream | * |
References
- https://github.com/erlang/otp/commit/e4b56a9f4a511aa9990dd86c16c61439c828df83
- https://github.com/erlang/otp/releases/tag/OTP-25.3.2.21
- https://github.com/erlang/otp/releases/tag/OTP-26.2.5.12
- https://github.com/erlang/otp/releases/tag/OTP-27.3.4
- https://github.com/erlang/otp/security/advisories/GHSA-934x-xq38-hhqf