CVE-2018-3756

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.11%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2 third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-3756?
CVE-2018-3756 has been scored as a high severity vulnerability.
How to fix CVE-2018-3756?
To fix CVE-2018-3756, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-3756 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-3756 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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