CVE-2025-58359 (GCVE-0-2025-58359)
Vulnerability from cvelistv5
Published
2025-09-04 23:50
Modified
2025-09-05 16:06
Severity ?
6.0 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-325 - Missing Cryptographic Step
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.
References
security-advisories@github.comhttps://github.com/ZcashFoundation/frost/commit/379ef689c733b3d9c80fd409071d4f3af4dafed2
security-advisories@github.comhttps://github.com/ZcashFoundation/frost/releases/tag/frost-core%2Fv2.2.0
security-advisories@github.comhttps://github.com/ZcashFoundation/frost/security/advisories/GHSA-wgq8-vr6r-mqxm
Impacted products
Vendor Product Version
ZcashFoundation frost Version: >= 2.0.0, < 2.2.0
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