Denial Of Service (DoS)

RubyGems is vulnerable to denial of service attacks. A local attacker can supply a specially crafted 'query' command to cause denial of service conditions by excessive CPU usage while parsing a sufficiently long gem summary. Query Command Handler is the affected component...

Input Validation

RubyGems is vulnerable to input validation errors. A remote, unauthenticated attacker could create a specially crafted RubyGem that, when installed by the target user, will allow the attacker to overwrite arbitrary files on the target system...

RHEL 7 : ruby (RHSA-2019:1235)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1235 advisory. Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system...

rubygems: Escape sequence injection vulnerability in gem owner

An issue was discovered in RubyGems 2.6 and later through 3.0.2. The gem owner command outputs the contents of the API response directly to stdout. Therefore, if the response is crafted, escape sequence injection may occur...

rubygems: Installing a malicious gem may lead to arbitrary code execution

A flaw was found in RubyGems. A crafted gem with a multi-line name is not handled correctly allowing an attacker to inject arbitrary code to the stub line of gemspec. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

rubygems: Escape sequence injection vulnerability in API response handling

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Gem::GemcutterUtilitieswithresponse may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur...

rubygems: Escape sequence injection vulnerability in verbose

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::UserInteractionverbose calls say without escaping, escape sequence injection is possible...

EulerOS Virtualization for ARM 64 3.0.1.0 : ruby (EulerOS-SA-2019-1407)

According to the versions of the ruby packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - It was discovered that the Net::FTP module did not properly process filenames in combination with certain operations. A...

rubygems: Installing a malicious gem may lead to arbitrary code execution

A flaw was found in RubyGems. A crafted gem with a multi-line name is not handled correctly allowing an attacker to inject arbitrary code to the stub line of gemspec. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

rubygems: Escape sequence injection vulnerability in API response handling

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Gem::GemcutterUtilitieswithresponse may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur...

rubygems: Escape sequence injection vulnerability in gem owner

An issue was discovered in RubyGems 2.6 and later through 3.0.2. The gem owner command outputs the contents of the API response directly to stdout. Therefore, if the response is crafted, escape sequence injection may occur...

rubygems: Delete directory using symlink when decompressing tar

A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files which now include path-checking code for symlinks, it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could...

rubygems: Escape sequence injection vulnerability in errors

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::CommandManagerrun calls alerterror without escaping, escape sequence injection is possible. There are many ways to cause an error...

rubygems: Escape sequence injection vulnerability in verbose

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::UserInteractionverbose calls say without escaping, escape sequence injection is possible...

rubygems: Delete directory using symlink when decompressing tar

A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files which now include path-checking code for symlinks, it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could...

rubygems: Escape sequence injection vulnerability in gem owner

An issue was discovered in RubyGems 2.6 and later through 3.0.2. The gem owner command outputs the contents of the API response directly to stdout. Therefore, if the response is crafted, escape sequence injection may occur...

Man-in-the-Middle (MitM)

RubyGems is the Ruby standard for publishing and managing third-party libraries. It was found that, when using RubyGems, the connection could be redirected from HTTPS to HTTP. This could lead to a user believing they are installing a gem via HTTPS, when the connection may have been silently...

Bootstrap-sass contains code execution backdoor

Arbitrary code execution via backdoor code was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the cfduid cookie value with base64 arbitrary code to be executed via eval, which can be leveraged to execute arbitrary code on the target...

GHSA-VQQV-V9M2-48P2 Bootstrap-sass contains code execution backdoor

Arbitrary code execution via backdoor code was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the cfduid cookie value with base64 arbitrary code to be executed via eval, which can be leveraged to execute arbitrary code on the target...

Code injection

Arbitrary code execution via backdoor code was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the cfduid cookie value with base64 arbitrary code to be executed via eval, which can be leveraged to execute arbitrary code on the target...