Vulnerability Description
Wrongthink peer-to-peer, end-to-end encrypted messenger with PeerJS and Axolotl ratchet. In wrongthink from version 2.0.0 and before 2.3.0 there was a set of vulnerabilities causing inadequate encryption strength. Part of the secret identity key was disclosed by the fingerprint used for connection. Additionally, the safety number was improperly calculated. It was computed using part of one of the public identity keys instead of being derived from both public identity keys. This caused issues in computing safety numbers which would potentially be exploitable in the real world. Additionally there was inadequate encryption strength due to use of 1024-bit DSA keys. These issues are all fixed in version 2.3.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wrongthink | Wrongthink | >= 2.0.0, < 2.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/parabirb/wrongthink/security/advisories/GHSA-5jxh-6378-rg7vThird Party Advisory
- https://github.com/parabirb/wrongthink/security/advisories/GHSA-5jxh-6378-rg7vThird Party Advisory
FAQ
What is CVE-2021-21387?
CVE-2021-21387 is a vulnerability with a CVSS score of 8.1 (HIGH). Wrongthink peer-to-peer, end-to-end encrypted messenger with PeerJS and Axolotl ratchet. In wrongthink from version 2.0.0 and before 2.3.0 there was a set of vulnerabilities causing inadequate encrypt...
How severe is CVE-2021-21387?
CVE-2021-21387 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21387?
Check the references section above for vendor advisories and patch information. Affected products include: Wrongthink Wrongthink.