Action Text Gem on Ruby plain_text_for_blockquote_node redos

Summaryinfo

A vulnerability was found in Action Text Gem on Ruby. It has been rated as problematic. This impacts the function plain_text_for_blockquote_node. The manipulation leads to redos. This vulnerability is listed as CVE-2024-47888. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Action Text Gem on Ruby (version unknown) and classified as problematic. This issue affects the function plain_text_for_blockquote_node. The manipulation with an unknown input leads to a redos vulnerability. Using CWE to declare the problem leads to CWE-1333. The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. Impacted is availability. The summary by CVE is:

Action Text brings rich text content and editing to Rails. Starting in version 6.0.0 and prior to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, and 7.2.1.1, there is a possible ReDoS vulnerability in the `plain_text_for_blockquote_node helper` in Action Text. Carefully crafted text can cause the `plain_text_for_blockquote_node` helper to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, or 7.2.1.1 or apply the relevant patch immediately. As a workaround, users can avoid calling `plain_text_for_blockquote_node` or upgrade to Ruby 3.2. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 depends on Ruby 3.2 or greater so is unaffected.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-47888 since 10/04/2024. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1449.003 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 216763 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : Rails vulnerabilities (USN-7290-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (216763). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Ruby Gem

Name

• Action Text Gem

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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