CVE-2022-45195

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdf
• 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/simplex-chat/simplexmq/compare/v3.3.0…v3.4.0

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdf
• 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/simplex-chat/simplexmq/compare/v3.3.0…v3.4.0

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