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CVE-2024-32482

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Date: April 23, 2024

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.

Language: C

Severity Score

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Time-of-check Time-of-use (TOCTOU) Race Condition

CWE-367

Top Fix

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Upgrade Version

Upgrade to version v1.0.0

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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