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WS-2021-0182

Good to know:

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Date: July 13, 2021

libsecp256k1 accepts signatures whose R or S parameter is larger than the secp256k1 curve order, which differs from other implementations. This could lead to invalid signatures being verified. The error is resolved in 0.5.0 by adding a check_overflow flag.

Language: RUST

Severity Score

Related Resources (2)

https://github.com/paritytech/libsecp256k1/commit/b525d5d318d9672a40250c1725fa1bb3156688b7
https://www.mend.io/vulnerability-database/WS-2021-0182

Severity Score

Weakness Type (CWE)

Insufficient Verification of Data Authenticity

CWE-345

Top Fix

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Upgrade to version libsecp256k1 - 0.5.0

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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