Bug 2181115 (CVE-2023-28119)

Summary:	CVE-2023-28119 crewjam/saml: Denial Of Service Via Deflate Decompression Bomb
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	amctagga, aoconnor, bniver, flucifre, gmeno, gparvin, grafana-maint, jkurik, mbenjamin, mhackett, nathans, njean, owatkins, pahickey, scox, sostapov, stcannon, teagle, vereddy
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	crewjam/saml 0.4.13	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-23 12:22:04 UTC	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:
Bug Blocks:	2181078

Description Avinash Hanwate 2023-03-23 06:34:08 UTC

The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package's use of `flate.NewReader` does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process. This issue is patched in version 0.4.13.

https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021
https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p

Comment 1 Product Security DevOps Team 2023-03-23 12:22:01 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-28119