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Low 27 Bitcoin

fix(common): require fields on SLIP-24 Text Details memo

TZaea4e4a2 View source ↗
Public commit record

What the developer wrote

Authored by matejcik

62/100 · Adequate
fix(common): require fields on SLIP-24 Text Details memo
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
The short version

What changed, and why it matters

This commit tightens the rules for a Trezor message type called TextDetailsMemo, which is part of the SLIP-24 payment-request memo format. Previously the title and text fields were optional and defaulted to empty strings; now both are required. The change is defensive: it prevents a device from accepting a payment-request memo that omits the title or body text. Without this, a malicious or buggy host could send a payment request with an empty/incomplete memo and still have it treated as a valid TextDetailsMemo, potentially misleading the user about what they are approving.

Recommended action

Treat as a low-severity hardening fix. Verify that downstream/host software already sends both title and text, because making fields required can break compatibility with older hosts that omitted them. No urgent user action is indicated.

Security signals we found

01

protobuf field requirement change from optional to required

02

adds missing-field validation in generated Rust is_initialized

03

affects SLIP-24 PaymentRequest memo parsing

04

prevents acceptance of incomplete TextDetailsMemo messages

Risk score

Why this scored 27/100

Our methodology →
Potential impact 5/30
Exploitability 4/25
Stealth signal 3/15
Affected reach 6/15
Confidence 6/10
Evidence quality 3/5
Human-validated context

Community notes

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