Bug 2164800 (CVE-2023-22792)

Summary:	CVE-2023-22792 rubygem-actionpack: Denial of Service in Action Dispatch
Product:	[Other] Security Response	Reporter:	ybuenos
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alex.wang, amackenz, amasferr, bbuckingham, bcourt, chazlett, ehelms, jsherril, kyoshida, lzap, mhulan, nmoumoul, orabin, pcreech, rchan, tjochec
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	rubygem-actionpack 6.1.7.1, rubygem-actionpack 7.0.4.1	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the rubygem-actionpack. RubyGem's actionpack gem is vulnerable to a denial of service caused by a regular expression denial of service (ReDoS) flaw in the Action Dispatch module. By sending specially-crafted cookies with an X_FORWARDED_HOST header, a remote attacker could exploit this vulnerability to use large amounts of CPU and memory, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2164802, 2164803
Bug Blocks:	2162605

Description ybuenos 2023-01-26 14:24:22 UTC

Specially crafted cookies, in combination with a specially crafted X_FORWARDED_HOST header can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.

We recommend that all users upgrade to one of the FIXED versions. In the meantime, users can mitigate this vulnerability by using a load balancer or other device to filter out malicious X_FORWARDED_HOST headers before they reach the application.

Comment 1 ybuenos 2023-01-26 14:25:29 UTC

Created rubygem-actionpack tracking bugs for this issue:

Affects: fedora-all [bug 2164802]

Comment 8 errata-xmlrpc 2023-11-08 14:17:14 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 6.14 for RHEL 8

Via RHSA-2023:6818 https://access.redhat.com/errata/RHSA-2023:6818