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Low 28 Bitcoin

bb03 UI: slide to confirm

Public commit record

What the developer wrote

Authored by Jad

68/100 · Adequate
bb03 UI: slide to confirm

Implement slide to confirm UI component for
confirming transactions and sensitive operations

Delete render_slide_confirm.rs
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
The short version

What changed, and why it matters

This commit adds a new 'slide to confirm' user-interface control to the BitBox03 hardware wallet. It is a deliberate UX/security feature for high-risk actions (like approving transactions), replacing a simple tap with a drag gesture. The code also includes hardening against accidental or glitched touch input, and a full suite of simulator tests. There is no direct evidence in the commit that this fixes an active security vulnerability; it reads as a planned product improvement.

Recommended action

Treat as a normal feature/security-hardening commit. Review the new slide_to_confirm.rs logic for race conditions between LV_EVENT_VALUE_CHANGED and snap-back animations, and verify that the Rc<SnapBack> lifetime is always shorter than the slider object. No urgent action is indicated by the supplied materials.

Security signals we found

01

New high-stakes confirmation gesture (slide instead of tap)

02

Input hardening: per-sample advance cap, off-track rejection, non-pointer rejection

03

Snap-back behavior on incomplete slides to prevent accidental confirmation

04

Extensive unit/simulator tests for both successful and adversarial touch sequences

05

No mention of a vulnerability, CVE, or security fix in commit message or diff

Risk score

Why this scored 28/100

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

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