CVE-2023-22795

rubygem-actionpack: Denial of Service in Action Dispatch

Published Feb 9, 2023 CVSS 3.1 · 7.5 High EPSS 2.3% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5372-1 rails security update
Github GHSA Github GHSA GHSA-8xww-x3g3-6jcv ReDoS based DoS vulnerability in Action Dispatch
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Aug 2, 2024, 10:20 AM
Reserved
Jan 6, 2023, 12:00 AM
Status
Modified
Published
Feb 9, 2023, 8:15 PM
Modified
Oct 24, 2026, 1:10 PM
Severity
Moderate
Public date
Jan 20, 2023, 12:00 AM