vulnerability
Alma Linux: CVE-2021-31810: Important: ruby:2.7 security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Jul 13, 2021 | May 4, 2022 | Nov 13, 2025 |
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
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