Information Exposure Affecting ruby:2.5/rubygem-mysql2-doc package, versions <0:0.4.10-4.module+el8.1.0+3656+f80bfa1d


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1% (85th percentile)

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  • Snyk IDSNYK-RHEL8-RUBY-4193859
  • published26 Jul 2021
  • disclosed7 Jul 2021

Introduced: 7 Jul 2021

CVE-2021-31810  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade RHEL:8 ruby:2.5/rubygem-mysql2-doc to version 0:0.4.10-4.module+el8.1.0+3656+f80bfa1d or higher.
This issue was patched in RHSA-2022:0672.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby:2.5/rubygem-mysql2-doc package and not the ruby:2.5/rubygem-mysql2-doc package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).

CVSS Scores

version 3.1