CVE-2020-15091

Katalog CVE

CVSS 6.5 · Medium EPSS 0,91%

Kerentanan Improper Verification of Cryptographic Signature pada tendermint. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

TenderMint from version 0.33.0 and before version 0.33.6 allows block proposers to include signatures for the wrong block. This may happen naturally if you start a network, have it run for some time and restart it (**without changing chainID**). A malicious block proposer (even with a minimal amount of stake) can use this vulnerability to completely halt the network. This issue is fixed in Tendermint 0.33.6 which checks all the signatures are for the block with 2/3+ majority before creating a commit.

Rincian

Terbit di NVD

2 Juli 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,91% peluang dieksploitasi; lebih tinggi dari 58,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/tendermint/tendermint/commit/480b995a31727593f58b361af979054d17d84340 patch · advisory pihak ketiga
• https://github.com/tendermint/tendermint/issues/4926 exploit · issue tracking · advisory pihak ketiga
• https://github.com/tendermint/tendermint/security/advisories/GHSA-6jqj-f58p-mrw3 exploit · advisory pihak ketiga