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Regular expression denial of service in eth-account

Moderate severity GitHub Reviewed Published Aug 23, 2022 to the GitHub Advisory Database • Updated Jan 28, 2023

Package

pip eth-account (pip)

Affected versions

< 0.5.9

Patched versions

0.5.9

Description

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the eth-account PyPI package, when an attacker is able to supply arbitrary input to the encode_structured_data method

References

Published by the National Vulnerability Database Aug 22, 2022
Published to the GitHub Advisory Database Aug 23, 2022
Reviewed Aug 30, 2022
Last updated Jan 28, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.086%
(38th percentile)

Weaknesses

CVE ID

CVE-2022-1930

GHSA ID

GHSA-v65g-f3cj-fjp4

Source code

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