Bug 2187595 (CVE-2023-29197)

Summary:	CVE-2023-29197 guzzlehttp/psr7: Improper header validation in guzzlehttp/psr7
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2023-04-18 10:39:30 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Bug Depends On:	2187596, 2187597
Bug Blocks:

Description Avinash Hanwate 2023-04-18 05:36:25 UTC

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n. This is a follow-up to CVE-2022-24775 where the fix was incomplete. The issue has been patched in versions 1.9.1 and 2.4.5. There are no known workarounds for this vulnerability. Users are advised to upgrade.

https://github.com/guzzle/psr7/security/advisories/GHSA-q7rv-6hp3-vh96
https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-24775
https://github.com/guzzle/psr7/security/advisories/GHSA-wxmh-65f7-jcvw
https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4

Comment 1 Avinash Hanwate 2023-04-18 05:36:43 UTC

Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 2187596]

Comment 2 Avinash Hanwate 2023-04-18 05:37:48 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2187597]

Comment 3 Product Security DevOps Team 2023-04-18 10:39:28 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.