CVE-2022-45195

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
mitreCNA
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CVEADP
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CISA-ADPADP
5.3 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
VendorProductVersion
simplexsimplex_chat
𝑥
< 4.2
simplexsimplexmq
𝑥
< 3.4.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/simplex-chat/simplexmq/compare/v3.3.0...v3.4.0
https://github.com/simplex-chat/simplexmq/pull/548
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/compare/v3.3.0...v3.4.0
https://github.com/simplex-chat/simplexmq/pull/548
https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdf
https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html