GHSA-hpwg-xg7m-3p6m
sm-crypto Affected by Signature Forgery in SM2-DSA
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
### Summary
A signature forgery vulnerability exists in the SM2 signature verification logic of sm-crypto. Under default configurations, an attacker can forge valid signatures for arbitrary public keys. If the message space contains sufficient redundancy, the attacker can fix the prefix of the message associated with the forged signature to satisfy specific formatting requirements.
### Credit
This vulnerability was discovered by:
- XlabAI Team of Tencent Xuanwu Lab
- Atuin Automated Vulnerability Discovery Engine
References
External links from the advisory. They lead to third-party sites.