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RedHat: RHSA-2021:3020-01 Important: Ruby 2.7 Security Risk

red hat
Calendar Grey August 5, 2021
Dist Redhat Esm H88
Key announcement regarding ruby:2.7 for Red Hat Linux resolves a variety of security vulnerabilities affecting both operation and protection.
An update for the ruby:2.7 module is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.
Security Fix(es):
* rubygem-bundler: Dependencies of gems with explicit source may be installed from a different source (CVE-2020-36327)
* rubygem-rdoc: Command injection vulnerability in RDoc (CVE-2021-31799)
* ruby: FTP PASV command response can cause Net::FTP to connect to arbitrary host (CVE-2021-31810)
* ruby: StartTLS stripping vulnerability in Net::IMAP (CVE-2021-32066)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat security fix ruby command injection data exposure ftp vulnerability

References

https://access.redhat.com/security/cve/CVE-2020-36327 https://access.redhat.com/security/cve/CVE-2021-31799 https://access.redhat.com/security/cve/CVE-2021-31810 https://access.redhat.com/security/cve/CVE-2021-32066 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: ruby-2.7.4-137.module+el8.4.0+12025+f744ca41.src.rpm rubygem-abrt-0.4.0-1.module+el8.3.0+7192+4e3a532a.src.rpm rubygem-bson-4.8.1-1.module+el8.3.0+7192+4e3a532a.src.rpm rubygem-mongo-2.11.3-1.module+el8.3.0+7192+4e3a532a.src.rpm rubygem-mysql2-0.5.3-1.module+el8.3.0+7192+4e3a532a.src.rpm rubygem-pg-1.2.3-1.module+el8.3.0+7192+4e3a532a.src.rpm
aarch64: ruby-2.7.4-137.module+el8.4.0+12025+f744ca41.aarch64.rpm ruby-debuginfo-2.7.4-137.module+el8.4.0+12025+f744ca41.aarch64.rpm ruby-debugsource-2.7.4-137.module+el8.4.0+12025+f744ca41.aarch64.rpm ruby-devel-2.7.4-137.module+el8.4.0+12025+f744ca41.aarch64.rpm ruby-libs-2.7.4-137.module+el8.4.0+12025+f744ca41.aarch64.rpm ruby-libs-debuginfo-2.7.4-137.module+el8.4.0+12025+f744ca41.aarch64.rpm rubygem-bigdecimal-2.0.0-137.module+el8.4.0+12025+f744ca41.aarch64.rpm rubygem-bigdecimal-debuginfo-2.0.0-137.module+el8.4.0+12025+f744ca41.aarch64.rpm rubygem-bson-4.8.1-1.module+el8.3.0+7192+4e3a532a.aarch64.rpm rubygem-bson-debuginfo-4.8.1-1.module+el8.3.0+7192+4e3a532a.aarch64.rpm rubygem-bson-debugsource-4.8.1-1.module+el8.3.0+7192+4e3a532a.aarch64.rpm rubygem-io-console-0.5.6-137.module+el8.4.0+12025+f744ca41.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3020-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3020
Issue date: 2021-08-05

Topic

An update for the ruby:2.7 module is now available for Red Hat EnterpriseLinux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat security fix ruby command injection data exposure ftp vulnerability

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1958999 - CVE-2020-36327 rubygem-bundler: Dependencies of gems with explicit source may be installed from a different source

1980126 - CVE-2021-31810 ruby: FTP PASV command response can cause Net::FTP to connect to arbitrary host

1980128 - CVE-2021-32066 ruby: StartTLS stripping vulnerability in Net::IMAP

1980132 - CVE-2021-31799 rubygem-rdoc: Command injection vulnerability in RDoc

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