vulnerability

Alma Linux: CVE-2021-31810: Important: ruby:2.7 security update (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Jul 13, 2021
Added
May 4, 2022
Modified
Nov 13, 2025

Description

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).

Solutions

alma-upgrade-rubyalma-upgrade-ruby-default-gemsalma-upgrade-ruby-develalma-upgrade-ruby-docalma-upgrade-ruby-irbalma-upgrade-ruby-libsalma-upgrade-rubygem-abrtalma-upgrade-rubygem-abrt-docalma-upgrade-rubygem-bigdecimalalma-upgrade-rubygem-bsonalma-upgrade-rubygem-bson-docalma-upgrade-rubygem-bundleralma-upgrade-rubygem-bundler-docalma-upgrade-rubygem-did_you_meanalma-upgrade-rubygem-io-consolealma-upgrade-rubygem-irbalma-upgrade-rubygem-jsonalma-upgrade-rubygem-minitestalma-upgrade-rubygem-mongoalma-upgrade-rubygem-mongo-docalma-upgrade-rubygem-mysql2alma-upgrade-rubygem-mysql2-docalma-upgrade-rubygem-net-telnetalma-upgrade-rubygem-opensslalma-upgrade-rubygem-pgalma-upgrade-rubygem-pg-docalma-upgrade-rubygem-power_assertalma-upgrade-rubygem-psychalma-upgrade-rubygem-rakealma-upgrade-rubygem-rdocalma-upgrade-rubygem-test-unitalma-upgrade-rubygem-xmlrpcalma-upgrade-rubygemsalma-upgrade-rubygems-devel
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.