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OpenAdvisories
Medium USN-6589-1 1 CVE

filezilla vulnerability

Published Jan 18, 2024 · Updated Apr 27, 2026

Ecosystem: Ubuntu

Summary

Fabian Baeumer, Marcus Brinkmann and Joerg Schwenk discovered that the SSH
protocol used in FileZilla is prone to a prefix truncation attack, known as
the "Terrapin attack". A remote attacker could use this issue to downgrade or
disable some security features and obtain sensitive information.

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS filezilla 3.46.3-1ubuntu0.1
Ubuntu · 22.04 LTS 22.04:LTS filezilla 3.58.0-1ubuntu0.1

Vulnerabilities 1

  • Medium 5.9
    CVE-2023-48795 Public exploit Scanner template EPSS 94%

    Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

    The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server…

    zot kubescape kots k3d Debian Ubuntu Azure Linux Alpine Wolfi PyPI Go crates.io

References

  • report
    https://ubuntu.com/security/CVE-2023-48795