Executive Summary
- •Ledger issued an urgent Ethereum app update after two transaction signing vulnerabilities remained unpatched in its previous release.
- •The flaws involved an 8-bit counter overflow at 257 operations and missing verification on exchange swap token approvals.
- •Firmware updates alone won't protect users unless the individual Ethereum application is manually updated to version 1.22.3 through Ledger Live.
Community Sentiment
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Key Developments & Data
Ledger released Ethereum app version 1.22.3 on Aug. 25 to patch two distinct signing vulnerabilities tracked as LSB-024 and LSB-025.
The first flaw, LSB-024, caused an 8-bit counter overflow when parsing 257 operations, displaying only the final transaction on screen while authorizing the entire batch.
The second flaw, LSB-025, failed to verify whether an exchange swap action was actually a payment, allowing a compromised swap provider to substitute a token approval without an extra prompt.
Both fixes were originally merged into the codebase in May, yet neither was included in the version 1.22.2 patch published on Aug. 13.
Ledger confirmed the issues required a compromised host computer, and internal tests on private network forks showed zero real-user funds were lost.
"No Ledger user was hacked." — Charles Guillemet
Zubiqo Strategic Assessment
Primary Impact
Hardware wallet manufacturers, Ethereum ecosystem users, and clear-signing smart contract developers.
Strategic Shift
The transition from blind signing to clear signing exposes systemic parser and display edge cases inside resource-constrained embedded devices.
The Ripple Effect
Hardware wallet vendors will face pressure to publish automated dependency release logs after unreleased patches sat idle in repositories for months.
This intelligence assessment is generated by Zubiqo's AI for informational purposes only.
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