Information Exposure Affecting ruby-tcltk package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
1% (85th percentile)

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  • Snyk IDSNYK-CENTOS7-RUBYTCLTK-2020339
  • 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?

There is no fixed version for Centos:7 ruby-tcltk.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-tcltk package and not the ruby-tcltk package as distributed by Centos. See How to fix? for Centos:7 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