Description
io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)
Published: 2023-04-21
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-1436 io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)
Github GHSA Github GHSA GHSA-3w84-4mjc-rjw7 IO FinNet tss-lib vulnerable to timing attack from non-constant time scalar multiplication
History

Wed, 05 Feb 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Subscriptions

Iofinnet Tss-lib
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-02-05T14:43:19.328Z

Reserved: 2023-02-26T00:00:00.000Z

Link: CVE-2023-26556

cve-icon Vulnrichment

Updated: 2024-08-02T11:53:54.326Z

cve-icon NVD

Status : Modified

Published: 2023-04-21T18:15:07.927

Modified: 2025-02-05T15:15:17.130

Link: CVE-2023-26556

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses