CVE-2022-45195

Public Exploit

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory simplex.chat
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdf third party advisory exploit technical description
https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html release notes vendor advisory
https://github.com/simplex-chat/simplexmq/pull/548 third party advisory patch
https://github.com/simplex-chat/simplexmq/compare/v3.3.0...v3.4.0 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2022-45195?
CVE-2022-45195 has been scored as a medium severity vulnerability.
How to fix CVE-2022-45195?
To fix CVE-2022-45195, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-45195 being actively exploited in the wild?
It is possible that CVE-2022-45195 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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