CVE-2023-22795

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Summary

CVECVE-2023-22795
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-02-09 20:15:11 UTC
Updated2026-10-24 13:10:00 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-400 | CWE-1333 | CWE-400 Denial of Service (CWE-400)

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Rubyonrails Rails All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Https//github.com/rails/rails affected 6.1.7.1, 7.0.4.1 Not specified

References

ReferenceSourceLinkTags
[CVE-2023-22795] Possible ReDoS based DoS vulnerability in Action Dispatch - Security Announcements - Ruby on Rails Discussions af854a3a-2127-422b-91ae-364da2661108 discuss.rubyonrails.org Patch, Vendor Advisory
Debian -- Security Information -- DSA-5372-1 rails af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
CVE-2023-22795 Ruby on Rails Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 181676 Debian Security Update for rails (DSA 5372-1)
  • 183071 Debian Security Update for rails (CVE-2023-22795)
  • 242347 Red Hat Update for Satellite 6.14 (RHSA-2023:6818)
  • 284280 Fedora Security Update for rubygem (FEDORA-2023-f60cca0686)
  • 753715 SUSE Enterprise Linux Security Update for rubygem-actionpack-5_1 (SUSE-SU-2023:0444-1)
  • 905549 Common Base Linux Mariner (CBL-Mariner) Security Update for ruby (13560)
  • 905550 Common Base Linux Mariner (CBL-Mariner) Security Update for ruby (13562)
  • 906907 Common Base Linux Mariner (CBL-Mariner) Security Update for ruby (13562-1)
  • 961065 Rocky Linux Security Update for Satellite (RLSA-2023:6818)

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