CVE-2026-33471: Nimiq Proof-of-stake: hatalı girdi doğrulama

Açıklama (NVD)

nimiq-block contains block primitives to be used in Nimiq's Rust implementation. `SkipBlockProof::verify` computes its quorum check using `BitSet.len()`, then iterates `BitSet` indices and casts each `usize` index to `u16` (`slot as u16`) for slot lookup. Prior to version 1.3.0, if an attacker can get a `SkipBlockProof` verified where `MultiSignature.signers` contains out-of-range indices spaced by 65536, these indices inflate `len()` but collide onto the same in-range `u16` slot during aggregation. This makes it possible for a malicious validator with far fewer than `2f+1` real signer slots to pass skip block proof verification by multiplying a single BLS signature by the same factor. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.

Özet bilgiler

Ürün

Nimiq Nimiq Proof-of-stake

CVSS v3.1

9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

EPSS

%0,22 (yüzdelik 12)

CWE

CWE-20

Yama

Mevcut

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• github.com
• github.com
• github.com
• CWE-20