CVEvulnerability
CVE-2023-22795
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-02-09
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-1333, CWE-400
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.
Affected configurations
• rubyonrails rails (< 6.1.7.1)
• rubyonrails rails (>= 7.0.0 < 7.0.4.1)
• debian debian linux 11.0
Related
References
- https://discuss.rubyonrails.org/t/cve-2023-22795-possible-redos-based-dos-vulnerability-in-action-dispatch/82118 Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20240202-0010/ security.netapp.com
- https://www.debian.org/security/2023/dsa-5372 Third Party Advisory
- https://discuss.rubyonrails.org/t/cve-2023-22795-possible-redos-based-dos-vulnerability-in-action-dispatch/82118 Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20240202-0010/ security.netapp.com
- https://www.debian.org/security/2023/dsa-5372 Third Party Advisory