Vulnerability Description
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Onionshare | Onionshare | < 2.5 |
Related Weaknesses (CWE)
References
- https://github.com/onionshare/onionshare/releases/tag/v2.5Release NotesThird Party Advisory
- https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpcThird Party Advisory
- https://github.com/onionshare/onionshare/releases/tag/v2.5Release NotesThird Party Advisory
- https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpcThird Party Advisory
FAQ
What is CVE-2022-21689?
CVE-2022-21689 is a vulnerability with a CVSS score of 7.5 (HIGH). OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions the receive mode limits concurren...
How severe is CVE-2022-21689?
CVE-2022-21689 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-21689?
Check the references section above for vendor advisories and patch information. Affected products include: Onionshare Onionshare.