PRIOn knowledge basePRION:CVE-2023-22795

HistoryFeb 09, 2023 - 8:15 p.m.

Design/Logic Flaw

2023-02-0920:15:00

PRIOn knowledge base

www.prio-n.com

dos vulnerability

regular expression

action dispatch

http header

cpu usage

memory usage

upgrade

workarounds

nvd

7.3 High

AI Score

Confidence

High

0.019 Low

EPSS

Percentile

88.7%

JSON

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.

CPENameOperatorVersion
debian_linuxeq11.0
railslt6.1.7.1
railsge7.0.0
railslt7.0.4.1

Name	Operator	Version
debian_linux	eq	11.0
rails	lt	6.1.7.1
rails	ge	7.0.0
rails	lt	7.0.4.1

References

discuss.rubyonrails.org/t/cve-2023-22795-possible-redos-based-dos-vulnerability-in-action-dispatch/82118

security.netapp.com/advisory/ntap-20240202-0010/

www.debian.org/security/2023/dsa-5372