ALASRUBY3.0-2023-005

Related Vulnerabilities: CVE-2021-31810   CVE-2021-32066  

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). (CVE-2021-31810) An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack." (CVE-2021-32066)

ALASRUBY3.0-2023-005


Amazon Linux 2 Security Advisory: ALASRUBY3.0-2023-005
Advisory Release Date: 2023-08-21 20:59 Pacific
Advisory Updated Date: 2023-09-25 22:01 Pacific
Severity: Medium

Issue Overview:

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). (CVE-2021-31810)

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack." (CVE-2021-32066)


Affected Packages:

ruby


Issue Correction:
Run yum update ruby to update your system.

New Packages:
aarch64:
    ruby-3.0.2-149.amzn2.aarch64
    ruby-devel-3.0.2-149.amzn2.aarch64
    ruby-libs-3.0.2-149.amzn2.aarch64
    rubygem-bigdecimal-3.0.0-149.amzn2.aarch64
    rubygem-io-console-0.5.7-149.amzn2.aarch64
    rubygem-json-2.5.1-149.amzn2.aarch64
    rubygem-psych-3.3.0-149.amzn2.aarch64
    ruby-debuginfo-3.0.2-149.amzn2.aarch64

noarch:
    rubygems-3.2.22-149.amzn2.noarch
    rubygems-devel-3.2.22-149.amzn2.noarch
    ruby-default-gems-3.0.2-149.amzn2.noarch
    rubygem-irb-1.3.5-149.amzn2.noarch
    rubygem-rdoc-6.3.1-149.amzn2.noarch
    ruby-doc-3.0.2-149.amzn2.noarch
    rubygem-bundler-2.2.22-149.amzn2.noarch
    rubygem-minitest-5.14.2-149.amzn2.noarch
    rubygem-power_assert-1.2.0-149.amzn2.noarch
    rubygem-rake-13.0.3-149.amzn2.noarch
    rubygem-rbs-1.0.4-149.amzn2.noarch
    rubygem-test-unit-3.3.7-149.amzn2.noarch
    rubygem-rexml-3.2.5-149.amzn2.noarch
    rubygem-rss-0.2.9-149.amzn2.noarch
    rubygem-typeprof-0.12.0-149.amzn2.noarch

src:
    ruby-3.0.2-149.amzn2.src

x86_64:
    ruby-3.0.2-149.amzn2.x86_64
    ruby-devel-3.0.2-149.amzn2.x86_64
    ruby-libs-3.0.2-149.amzn2.x86_64
    rubygem-bigdecimal-3.0.0-149.amzn2.x86_64
    rubygem-io-console-0.5.7-149.amzn2.x86_64
    rubygem-json-2.5.1-149.amzn2.x86_64
    rubygem-psych-3.3.0-149.amzn2.x86_64
    ruby-debuginfo-3.0.2-149.amzn2.x86_64