A regular expression based DoS vulnerability in Action Dispatch
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-22795 rails Fixed in: 2:6.0.3.7+dfsg-2+deb11u1
- Ubuntu UBUNTU-CVE-2023-22795 rails
Original description The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- advisory debian.org
- web discuss.rubyonrails.org