How severe is GHSA-h24c-6p6p-m3vx?

No CVSS score has been assigned to GHSA-h24c-6p6p-m3vx yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-h24c-6p6p-m3vx?

GHSA-h24c-6p6p-m3vx affects the following packages: github.com/bnb-chain/tss-lib (Go). Ecosystems affected: Go.

How do I fix GHSA-h24c-6p6p-m3vx?

The records we use list no patched version of github.com/bnb-chain/tss-lib for GHSA-h24c-6p6p-m3vx. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect GHSA-h24c-6p6p-m3vx in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/bnb-chain/tss-lib, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-h24c-6p6p-m3vx if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is GHSA-h24c-6p6p-m3vx actively exploited in the wild?

No public exploit code has been indexed for GHSA-h24c-6p6p-m3vx yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-h24c-6p6p-m3vx published, and has it been updated?

GHSA-h24c-6p6p-m3vx was published on September 1, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

tss-lib leaks secret keys in response to incorrectly constructed Paillier moduliGHSA-h24c-6p6p-m3vx

Fix: threshold-network/tss-lib@2e71268

GHSA-h24c-6p6p-m3vx is a security vulnerability in github.com/bnb-chain/tss-lib. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Published

Sep 1, 2023

Updated

Sep 1, 2023

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Sep 1, 2023 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🐹github.com/bnb-chain/tss-lib

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Impact

The specification of the GG18 threshold ECDSA signature protocol contains a vulnerability allowing an attacker to recover the shared secret key. If a participant generates a Paillier modulus N containing small factors (less than 2^100) they can interact with other participants in the signing protocol to steal their secret key shares in as little as sixteen signing attempts. The master key can then be reconstructed from these shares.

Patches

The implementation of GG18 in tss-lib did not prove that N is biprime or that it doesn't contain small factors. The fixed implementation adds the following proofs from the CGGMP21 threshold ECDSA protocol to the key generation:

Paillier-Blum Modulus (N is the product of two primes)
No Small Factor (both factors of N are greater than 2^256)

These proofs apply to both the Paillier encryption modulus N, and the modulus NTilde used in MTA proofs.

To address the issue in the resharing protocol, an additional round has been added to the end so that participants can confirm that they received valid proofs.

References

GG18
CGGMP21

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/bnb-chain/tss-lib`	all versions	No fix

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/bnb-chain/tss-lib, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of github.com/bnb-chain/tss-lib for GHSA-h24c-6p6p-m3vx. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Impact The specification of the GG18 threshold ECDSA signature protocol contains a vulnerability allowing an attacker to recover the shared secret key. If a participant generates a Paillier modulus `N` containing small factors (less than `2^100`) they can interact with other participants in the signing protocol to steal their secret key shares in as little as sixteen signing attempts. The master key can then be reconstructed from these shares. ### Patches The implementation of GG18 in tss-lib did not prove that `N` is biprime or that it doesn't contain small factors. The fixed implement

O3 Security · Impact-Aware SCA

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