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CVE-2022-21689

CVE-2022-21689 · Denial of Service in Onionshare

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 7.5 · High · EPSS 1.3% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • onionshare

    Versions
    • < 2.5: Affected

    No fix published

  • onionshare Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.5-1

    Update to 2.5-1

  • onionshare Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.5-1

    Update to 2.5-1

  • onionshare Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.5-1

    Update to 2.5-1

  • onionshare-cli PyPI

    Versions
    • 2.3
    • 2.3.1
    • 2.3.2
    • 2.3.3
    Affected ranges
    • ECOSYSTEM: < 2.5

    Update to 2.5

  • onionshare Ubuntu:Pro:20.04:LTS

    Versions
    • 2.1-1
    • 2.2-1
    Affected ranges
    • ECOSYSTEM: < 2.2-1ubuntu0.1~esm1

    Update to 2.2-1ubuntu0.1~esm1

  • onionshare Ubuntu:Pro:22.04:LTS

    Versions
    • 2.2-3
    Affected ranges
    • ECOSYSTEM: < 2.2-3ubuntu0.1~esm1

    Update to 2.2-3ubuntu0.1~esm1

Original sources

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