The Tillitis TKey signer device application is an ed25519 signing tool. A vulnerability has been found that makes it possible to disclose portions of the TKey’s data in RAM over the USB interface. To exploit the vulnerability an attacker needs to use a custom client application and to touch the TKey. No secret is disclosed. All client applications integrating tkey-device-signer should upgrade to version 1.0.0 to receive a fix. No known workarounds are available.
CVSS Details
- CVSS 3.1 Base Score: 2.2
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N)
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