CVE-2018-3756

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-1 are vulnerable to transaction and block signature verification bypass in the transaction and block validator allowing a single node to sign a transaction and/or block multiple times, each with a random nonce, and have other validating nodes accept them as separate valid signatures.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-347

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2Third Party Advisory
https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2Third Party Advisory

Timeline

Published: Jun 1, 2018
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2018

CVE-2018-37579.8Command injection exists in pdf-image v2.0.0 due to an unescaped string parameter.CVE-2018-37588.8Unrestricted file upload (RCE) in express-cart module before 1.1.7 allows a privileged user to gain access in the hosting machine.CVE-2018-37593.7private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the sock CVE-2018-37607.5There is an information leak vulnerability in Sprockets. Versions Affected: 4.0.0.beta7 and lower, 3.7.1 and lower, 2.12.4 and lower. Specia CVE-2018-37618.1Nextcloud Server before 12.0.8 and 13.0.3 suffer from improper authentication on the OAuth2 token endpoint. Missing checks potentially allow CVE-2018-37624.3Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still r CVE-2018-37634.8In Nextcloud Calendar before 1.5.8 and 1.6.1, a missing sanitization of search results for an autocomplete field could lead to a stored XSS CVE-2018-37644.8In Nextcloud Contacts before 2.1.2, a missing sanitization of search results for an autocomplete field could lead to a stored XSS requiring CVE-2018-37667.5Path traversal in buttle module versions <= 0.2.0 allows to read any file in the server.CVE-2018-37679.1`memjs` versions <= 1.1.0 allocates and stores buffers on typed input, resulting in DoS and uninitialized memory usage.CVE-2018-37696.1ruby-grape ruby gem suffers from a cross-site scripting (XSS) vulnerability via "format" parameter.CVE-2018-37705.5A path traversal exists in markdown-pdf version <9.0.0 that allows a user to insert a malicious html code that can result in reading the loc