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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: hackerone
Published: 2023-02-09T00:00:00
Updated: 2024-08-02T10:20:30.901Z
Reserved: 2023-01-06T00:00:00
Link: CVE-2023-22795
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-02-09T20:15:11.420
Modified: 2024-11-21T07:45:26.440
Link: CVE-2023-22795
Redhat