CVE-2022-45195 Information

Description

SimpleXMQ before 3.4.0 as used in SimpleX Chat before 4.2 does not apply a key derivation function to intended data which can interfere with forward secrecy and can have other impacts if there is a compromise of a single private key. This occurs in the X3DH key exchange for the double ratchet protocol.

Reference

https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html https://github.com/simplex-chat/simplexmq/pull/548 https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdf https://github.com/simplex-chat/simplexmq/compare/v3.3.0…v3.4.0