Bug 2010934 (CVE-2021-41524)

Summary:	CVE-2021-41524 httpd: NULL pointer dereference via crafted request during HTTP/2 request processing
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anon.amish, asoldano, atangrin, bbaranow, bmaxwell, brian.stansberry, caswilli, cdewolf, chazlett, csutherl, darran.lofthouse, dkreling, dosoudil, dseok, eleandro, fjansen, fjuma, gzaronik, hhorak, iweiss, jclere, jkaluza, jochrist, jorton, jpallich, jperkins, jwong, jwon, kaycoth, kwills, lgao, luhliari, msochure, msvehla, mturk, nwallace, pahan, pjindal, pmackay, rguimara, rstancel, rsvoboda, smaestri, szappis, tom.jenkinson, yborgess
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	httpd 2.4.50	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-03 19:33:15 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:	2010935
Bug Blocks:	2000242

Description Guilherme de Almeida Suckevicz 2021-10-05 16:27:11 UTC

While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.

References:
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/rc30f96fa07346fa6bdd73f3e172b8964ec9a7d49351b4f60422fc469@%3Cannounce.apache.org%3E

Comment 1 Guilherme de Almeida Suckevicz 2021-10-05 16:27:36 UTC

Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 2010935]

Comment 8 errata-xmlrpc 2022-10-26 20:06:35 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2022:7144 https://access.redhat.com/errata/RHSA-2022:7144

Comment 9 errata-xmlrpc 2022-10-26 20:21:00 UTC

This issue has been addressed in the following products:

  JBoss Core Services on RHEL 7
  JBoss Core Services for RHEL 8

Via RHSA-2022:7143 https://access.redhat.com/errata/RHSA-2022:7143

Comment 11 Product Security DevOps Team 2022-12-03 19:33:11 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-2021-41524