Linux Distros Unpatched Vulnerability : CVE-2024-27280

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods o...

Linux Distros Unpatched Vulnerability : CVE-2024-27282

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in Ruby 3.x through 3.3.0. If attacker-supplied data is provided to the Ruby regex compiler, it is possible to extract arbitrary heap da...

CVE-2025-24294

The attack vector is a potential Denial of Service DoS. The vulnerability is caused by an insufficient check on the length of a decompressed domain name within a DNS packet. An attacker can craft a malicious DNS packet containing a highly compressed domain name. When the resolv library parses suc...

CVE-2025-43857 net-imap rubygem vulnerable to possible DoS by memory exhaustion

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a maliciou...

Linux Distros Unpatched Vulnerability : CVE-2024-49761

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between & and x...; in a hex...

Linux Distros Unpatched Vulnerability : CVE-2018-8778

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to...

Linux Distros Unpatched Vulnerability : CVE-2020-10663

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability...

GHSA-MHWM-JH88-3GJF CGI has Regular Expression Denial of Service (ReDoS) potential in Util#escapeElement

There is a possibility for Regular expression Denial of Service ReDoS by in the cgi gem. This vulnerability has been assigned the CVE identifier CVE-2025-27220. We recommend upgrading the cgi gem. Details The regular expression used in CGI::UtilescapeElement is vulnerable to ReDoS. The crafted...

PT-2025-8695

Name of the Vulnerable Software and Affected Versions CGI gem versions prior to 0.4.2 Description A Regular Expression Denial of Service ReDoS vulnerability exists in the UtilescapeElement method. This issue can lead to high CPU consumption due to crafted input. The vulnerability affects Ruby...

CVE-2025-27220 - ReDoS in CGI::Util#escapeElement.

There is a possibility for Regular expression Denial of Service ReDoS by in the cgi gem. This vulnerability has been assigned the CVE identifier CVE-2025-27220. We recommend upgrading the cgi gem. Details The regular expression used in CGI::UtilescapeElement is vulnerable to ReDoS. The crafted...

CVE-2025-25186 Net::IMAP vulnerable to possible DoS by memory exhaustion

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is...

CVE-2025-25186

CVE-2025-25186 concerns Net::IMAP in Ruby. The DoS arises from the IMAP response parser reading highly compressed uid-set data without limiting expansion, potentially exhausting memory while a client remains connected. Fixed in versions 0.3.8, 0.4.19, 0.5.6, and later; affected range includes 0.3...

CVE-2025-25186 Net::IMAP vulnerable to possible DoS by memory exhaustion

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is...

BIT-RUBY-MIN-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. 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 th...

BIT-RUBY-MIN-2022-28739

There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including KernelFloat and Stringtof...

EulerOS 2.0 SP8 : ruby (EulerOS-SA-2025-1129)

According to the versions of the ruby packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and unge...

AZL-51876 CVE-2024-49761 affecting package ruby for versions less than 3.1.4-8

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between & and x...; in a hex numeric character reference &x...;. This does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML...

UBUNTU-CVE-2024-49761

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between & and x...; in a hex numeric character reference &x...;. This does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML...

Regular Expression Denial of Service (ReDoS)

Overview rexml is an An XML toolkit for Ruby. Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS due to the usage of insecure regular expressions in CHARACTERREFERENCES. This vulnerability can be exploited when parsing XML content containing numerous...

USN-6853-1 ruby2.7, ruby3.0, ruby3.1 vulnerability

It was discovered that Ruby incorrectly handled the ungetbyte and ungetc methods. A remote attacker could use this issue to cause Ruby to crash, resulting in a denial of service, or possibly obtain sensitive information...