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2 vulnerabilities found for frost by ZcashFoundation
CVE-2025-58359 (GCVE-0-2025-58359)
Vulnerability from nvd – Published: 2025-09-04 23:50 – Updated: 2025-09-05 16:06
VLAI
Title
frost-core: refresh shares with smaller min_signers will reduce group security
Summary
ZF FROST is a Rust implementation of FROST (Flexible Round-Optimised Schnorr Threshold signatures). In versions 2.0.0 through 2.1.0, refresh shares with smaller min_signers will reduce security of group. The inability to change min_signers (i.e. the threshold) with the refresh share functionality (frost_core::keys::refresh module) was not made clear to users. Using a smaller value would not decrease the threshold, and attempts to sign using a smaller threshold would fail. Additionally, after refreshing the shares with a smaller threshold, it would still be possible to sign with the original threshold, potentially causing a security loss to the participant's shares. This issue is fixed in version 2.2.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-325 - Missing Cryptographic Step
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/frost/security… | x_refsource_CONFIRM |
| https://github.com/ZcashFoundation/frost/commit/3… | x_refsource_MISC |
| https://github.com/ZcashFoundation/frost/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | frost |
Affected:
>= 2.0.0, < 2.2.0
|
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CVE-2025-58359 (GCVE-0-2025-58359)
Vulnerability from cvelistv5 – Published: 2025-09-04 23:50 – Updated: 2025-09-05 16:06
VLAI
Title
frost-core: refresh shares with smaller min_signers will reduce group security
Summary
ZF FROST is a Rust implementation of FROST (Flexible Round-Optimised Schnorr Threshold signatures). In versions 2.0.0 through 2.1.0, refresh shares with smaller min_signers will reduce security of group. The inability to change min_signers (i.e. the threshold) with the refresh share functionality (frost_core::keys::refresh module) was not made clear to users. Using a smaller value would not decrease the threshold, and attempts to sign using a smaller threshold would fail. Additionally, after refreshing the shares with a smaller threshold, it would still be possible to sign with the original threshold, potentially causing a security loss to the participant's shares. This issue is fixed in version 2.2.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-325 - Missing Cryptographic Step
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/frost/security… | x_refsource_CONFIRM |
| https://github.com/ZcashFoundation/frost/commit/3… | x_refsource_MISC |
| https://github.com/ZcashFoundation/frost/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | frost |
Affected:
>= 2.0.0, < 2.2.0
|
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