CVE-2021-43570
Critical
Description
The verify function in the Stark Bank Java ECDSA library (ecdsa-java) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
SeverityCritical
CVSS9.8
Exploit probability—
ProductStarkbank Ecdsa-java
PublishedNov 9, 2021
First seenNov 9, 2021
How to fix
Update
- com.starkbank.ellipticcurve:starkbank-ecdsa1.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| starkbank ecdsa-java | 1.0.0 | — |
| com.starkbank.ellipticcurve:starkbank-ecdsaMaven | v < 1.0.1 | 1.0.1 |
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