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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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   
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:
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.


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):