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. 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).

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).

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).

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).

Security Fix(es):

In RDoc 3.11 through 6.x before 6.3.1, as distributed with Ruby through 3.0.1, it is possible to execute arbitrary code via | and tags in a filename.(CVE-2021-31799)

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)

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.

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)

• ruby: Regular expression denial of service vulnerability of Date parsing methods (CVE-2021-41817)

• ruby: Cookie prefix spoofing in CGI::Cookie.parse (CVE-2021-41819)

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.

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-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.

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).

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.

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)

• ruby: Regular expression denial of service vulnerability of Date parsing methods (CVE-2021-41817)

• ruby: Cookie prefix spoofing in CGI::Cookie.parse (CVE-2021-41819)

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.

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-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.

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).

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).

Bundler sometimes chooses a dependency source based on the highest gem version number, which means that a rogue gem found at a public source may be chosen, even if the intended choice was a private gem that is a dependency of another private gem that is explicitly depended on by the application. (CVE-2020-36327)

The REXML gem does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing. (CVE-2021-28965)

In RDoc it is possible to execute arbitrary code via | and tags in a filename. (CVE-2021-31799)

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)

Ruby 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)

Buffer Overrun in CGI.escape_html (CVE-2021-41816)

Regular Expression Denial of Service Vulnerability of Date Parsing Methods (CVE-2021-41817)

Cookie Prefix Spoofing in CGI::Cookie.parse (CVE-2021-41819)

This update for ruby2.5 fixes the following issues:

• CVE-2021-31799: Fixed Command injection vulnerability in RDoc (bsc#1190375).
• CVE-2021-31810: Fixed trusting FTP PASV responses vulnerability in Net:FTP (bsc#1188161).
• CVE-2021-32066: Fixed StartTLS stripping vulnerability in Net:IMAP (bsc#1188160).

This update was imported from the SUSE:SLE-15:Update update project.

This update for ruby2.5 fixes the following issues:

• CVE-2021-31799: Fixed Command injection vulnerability in RDoc (bsc#1190375).
• CVE-2021-31810: Fixed trusting FTP PASV responses vulnerability in Net:FTP (bsc#1188161).
• CVE-2021-32066: Fixed StartTLS stripping vulnerability in Net:IMAP (bsc#1188160).

These are all security issues fixed in the libruby2_7-2_7-2.7.4-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libruby3_0-3_0-3.0.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libruby3_1-3_1-3.1.0-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libruby3_2-3_2-3.2.1-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libruby3_3-3_3-3.3.0-1.2 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libruby3_4-3_4-3.4.1-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libruby4_0-4_0-4.0.0~preview2-1.1 package on the GA media of openSUSE Tumbleweed.

This update for ruby2.1 fixes the following issues:

• CVE-2020-25613: Fixed potential HTTP request smuggling in WEBrick (bsc#1177125).
• CVE-2021-31799: Fixed Command injection vulnerability in RDoc (bsc#1190375).
• CVE-2021-31810: Fixed trusting FTP PASV responses vulnerability in Net:FTP (bsc#1188161).
• CVE-2021-32066: Fixed StartTLS stripping vulnerability in Net:IMAP (bsc#1188160).

This update for ruby2.5 fixes the following issues:

• CVE-2021-31799: Fixed Command injection vulnerability in RDoc (bsc#1190375).
• CVE-2021-31810: Fixed trusting FTP PASV responses vulnerability in Net:FTP (bsc#1188161).
• CVE-2021-32066: Fixed StartTLS stripping vulnerability in Net:IMAP (bsc#1188160).

This update for ruby fixes the following issues:

• CVE-2018-16395: Fixed an issue where two x509 certificates could be considered to be equal when this was not the case (bsc#1112530).
• CVE-2021-32066: Fixed an issue where the IMAP client API would not report a failure when StartTLS failed, leading to potential man in the middle attacks (bsc#1188160).
• CVE-2021-31810: Fixed an issue where the FTP client API would trust certain responses from a malicious server, tricking the client into connecting to addresses not (bsc#1188161).

This update for ruby2.5 fixes the following issues:

• CVE-2022-28739: Fixed a buffer overrun in String-to-Float conversion (bsc#1198441).
• CVE-2021-41817: Fixed a regular expression denial of service in Date Parsing Methods (bsc#1193035).
• CVE-2021-32066: Fixed a StartTLS stripping vulnerability in Net:IMAP (bsc#1188160).
• CVE-2021-31810: Fixed a trusting FTP PASV responses vulnerability in Net:FTP (bsc#1188161).
• CVE-2021-31799: Fixed a command injection vulnerability in RDoc (bsc#1190375).

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-31799)

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to conduct port scans and service banner extractions. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-31810)

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to perform machine-in-the-middle attackers to bypass the TLS protection. (CVE-2021-32066)