Version 2.9.1 from unstable fixes the bug, updating Logitech firmware for Unifying Receiver worked flawlessly - thanks!
$ fwupdmgr get-updates Firmware-Aktualisierungen für Unifying Receiver verfügbar: Device ID: 2e9da6ef470824f72c5e7f16cc039da920f7b917 GUID: 9d131a0c-a606-580f-8eda-80587250b8d6 GUID: 279ed287-3607-549e-bacc-f873bb9838c4 Kennung: com.logitech.Unifying.RQR12.firmware Version aktualisieren: RQR12.08_B0030 Aktualisierungsname: Unifying Receiver Device Update Update Aktualisierungszusammenfassung:Firmware for the Logitech Unifying receiver Update Remote ID: lvfs Update Duration: 7 seconds Prüfsumme aktualisieren:SHA1(8dabc1e0fdd536c13d1e94c637d300f3541d3bf1) Ort aktualisieren: https://fwupd.org/downloads/690feedb8fe9cb05d1eaf80f903d66381eec7200-Logitech-Unifying-RQR12.08_B0030.cab Beschreibung aktualisieren:This release addresses an encrypted keystroke injection issue known as Bastille security issue #13. The vulnerability is complex to replicate and would require a hacker to be physically close to a target. • Wireless Mouse M335 • Zone Touch Mouse T400 • Wireless Mouse M545 • Wireless Mouse M560 • Touch Mouse M600 • Touch Mouse T620 • Wireless Rechargeable Touchpad T650 Kennung: com.logitech.Unifying.RQR12.firmware Version aktualisieren: RQR12.07_B0029 Aktualisierungsname: Unifying Receiver Device Update Update Aktualisierungszusammenfassung:Firmware for the Logitech Unifying receiver Update Remote ID: lvfs Update Duration: 7 seconds Prüfsumme aktualisieren:SHA1(d0d33e760ab6eeed6f11b9f9bd7e83820b29e970) Ort aktualisieren: https://fwupd.org/downloads/938fec082652c603a1cdafde7cd25d76baadc70d-Logitech-Unifying-RQR12.07_B0029.cab Beschreibung aktualisieren:This release addresses an unencrypted keystroke injection issue known as Bastille security issue #11. The vulnerability is complex to replicate and would require a hacker to be physically close to a target. $ fwupdmgr update Downloading RQR12.08_B0030 for Unifying Receiver... Firmware wird abgerufen https://fwupd.org/downloads/690feedb8fe9cb05d1eaf80f903d66381eec7200-Logitech-Unifying-RQR12.08_B0030.cab Herunterladen … [***************************************] Entpacken … [***************************************] Authentifizierung … [***************************************] Unifying Receiver wird aktualisiert … Bereit … [***************************************] Unifying Receiver wird aktualisiert …****************************]