CVE-2022-2053

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2022-2053
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-05 16:15:00 UTC
Updated2022-08-11 14:06:00 UTC
DescriptionWhen a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Undertow's AjpServerRequestConduit implementation closes a connection without sending any response to the client/proxy. This behavior results in that a front-end proxy marking the backend worker (application server) as an error state and not forward requests to the worker for a while. In mod_cluster, this continues until the next STATUS request (10 seconds intervals) from the application server updates the server state. So, in the worst case, it can result in "All workers are in error state" and mod_cluster responds "503 Service Unavailable" for a while (up to 10 seconds). In mod_proxy_balancer, it does not forward requests to the worker until the "retry" timeout passes. However, luckily, mod_proxy_balancer has "forcerecovery" setting (On by default; this parameter can force the immediate recovery of all workers without considering the retry parameter of the workers if all workers of a balancer are in error state.). So, unlike mod_cluster, mod_proxy_balancer does not result in responding "503 Service Unavailable". An attacker could use this behavior to send a malicious request and trigger server errors, resulting in DoS (denial of service). This flaw was fixed in Undertow 2.2.19.Final, Undertow 2.3.0.Alpha2.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Redhat Integration Camel K - All All All
Application Redhat Jboss Fuse 7.0.0 All All All
Application Redhat Undertow All All All All
Application Redhat Undertow 2.3.0 alpha1 All All

References

ReferenceSourceLinkTags
2095862 – (CVE-2022-2053) CVE-2022-2053 undertow: Large AJP request may cause DoS MISC bugzilla.redhat.com
[UNDERTOW-2133] CVE-2022-2053: Large AJP request may cause DoS - Red Hat Issue Tracker MISC issues.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 240711 Red Hat Update for JBoss Enterprise Application Platform 7.4.7 (RHSA-2022:6822)
  • 240712 Red Hat Update for JBoss Enterprise Application Platform 7.4.7 (RHSA-2022:6823)
  • 240713 Red Hat Update for JBoss Enterprise Application Platform 7.4.7 (RHSA-2022:6821)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report