An issue was discovered in IO FinNet tss-lib before 2.0.0.
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-294.
Summary
An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemented in sch.go does not utilize a session id, context, or random nonce in the generation of the challenge. This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/bnb-chain/tss-lib (Go) | before 2.0.0 | 2.0.0 | Patch available | GHSA-c58h-qv6g-fw74 |
| — | github.com/binance-chain/tss-lib (Go) | before 2.0.0 | 2.0.0 | Patch available | GHSA-c58h-qv6g-fw74 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/bnb-chain/tss-lib (Go) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-c58h-qv6g-fw74
- github.com/binance-chain/tss-lib (Go) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-c58h-qv6g-fw74
Remediation
- Fix · GHSA-c58h-qv6g-fw74 github.com/bnb-chain/tss-lib (Go) Fixed in 2.0.0 Advisory →
- Fix · GHSA-c58h-qv6g-fw74 github.com/binance-chain/tss-lib (Go) Fixed in 2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-47930
- 2026-10-03 Alias added: GHSA-c58h-qv6g-fw74
References
Other 6
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
- https://github.com/bnb-chain/tss-lib/pull/256
- https://github.com/bnb-chain/tss-lib/commit/1a14f3ac9ecbf6115e80d44c7fff16bcc3139250
- https://github.com/bnb-chain/tss-lib
- https://medium.com/@iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
More Iofinnet Tss-lib vulnerabilities
- TI-2023-11693 io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack… CVSS 3.1CRITICAL 9.1
- TI-2022-23745 IO FinNet tss-lib before 2.0.0 allows a collision of hash values. CVSS 3.1CRITICAL 9.1
- TI-2023-11694 io.finnet tss-lib before 2.0.0 can leak the lambda value of a private key via a timing… CVSS 3.1HIGH 7.5
Sources
- CVE-2022-47930 · CVE Program
- CVE-2022-47930 · NVD
- FIRST EPSS
- GHSA-c58h-qv6g-fw74 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences