CVE-2023-26557

io.finnet tss-lib before 2.0.0 can leak the lambda value of a private key via a timing side-channel attack because it relies on Go big.Int, which is not constant time for Cmp, modular exponentiation, or modular inverse. An example leak is in crypto/paillier/paillier.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0	Release Notes
https://github.com/bnb-chain/tss-lib/tree/v1.3.5	Product
https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3	Release Notes
https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0	Release Notes
https://github.com/bnb-chain/tss-lib/tree/v1.3.5	Product
https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3	Release Notes
https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b

Configurations

Configuration 1 (hide)

cpe:2.3:a:iofinnet:tss-lib:*:*:*:*:*:*:*:*

History

21 Nov 2024, 07:51

Type	Values Removed	Values Added
References	~~() https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0 - Release Notes~~	() https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0 - Release Notes
References	~~() https://github.com/bnb-chain/tss-lib/tree/v1.3.5 - Product~~	() https://github.com/bnb-chain/tss-lib/tree/v1.3.5 - Product
References	~~() https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3 - Release Notes~~	() https://gitlab.com/thorchain/tss/tss-lib/-/tags/v0.1.3 - Release Notes
References	~~() https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b -~~	() https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b -

Information

Published : 2023-04-21 18:15

Updated : 2025-02-05 15:15

NVD link : CVE-2023-26557

Mitre link : CVE-2023-26557

CVE.ORG link : CVE-2023-26557

JSON object : View

Products Affected

iofinnet

tss-lib

CWE

CWE-203

Observable Discrepancy

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