A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match header. A specially crafted HTTP If-None-Match header can cause the regular expression engine to enter a state of catastrophic backtracking, when on a version of Ruby below 3.2.0. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately.
CVE-2023-22795 - High Severity Vulnerability
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Library home page: https://rubygems.org/gems/actionpack-6.0.1.gem
Path to dependency file: /Gemfile.lock
Path to vulnerable library: /Gemfile.lock
Dependency Hierarchy: - web-console-4.0.1.gem (Root Library) - railties-6.0.1.gem - :x: **actionpack-6.0.1.gem** (Vulnerable Library)
Found in HEAD commit: e271489b697fb2c5d50978cae9fc649efc2f65f9
Found in base branch: master
A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match header. A specially crafted HTTP If-None-Match header can cause the regular expression engine to enter a state of catastrophic backtracking, when on a version of Ruby below 3.2.0. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately.
Publish Date: 2023-02-09
URL: CVE-2023-22795
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2023-02-09
Fix Resolution: actionpack - 6.1.7.1, 7.0.4.1
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