CVE-2023-26556

CVSS V2 None CVSS V3 None

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.)

Overview

CVE ID
CVE-2023-26556

Assigner
cve@mitre.org

Vulnerability Status
Awaiting Analysis

Published Version
2023-04-21T18:15:07

Last Modified Date
2023-04-24T13:02:19

References

Reference URL	Reference Tags
https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0
https://github.com/bnb-chain/tss-lib/tree/v1.3.5
https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3
https://medium.com/@iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2023-26556
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-26556

History

Created	Old Value	New Value	Data Type	Notes
2023-04-21 19:01:11				Added to TrackCVE
2023-04-24 14:03:53		2023-04-24T13:02:19	CVE Modified Date	updated
2023-04-24 14:03:53	Received	Awaiting Analysis	Vulnerability Status	updated