A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-1173 A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
Github GHSA Github GHSA GHSA-rhcw-wjcm-9h6g Denial of service in Undertow
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 25 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat jboss Enterprise Application Platform Eus
CPEs cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7
Vendors & Products Redhat jboss Enterprise Application Platform Eus

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T16:25:42.926Z

Reserved: 2020-10-27T00:00:00

Link: CVE-2020-27782

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-23T19:15:13.150

Modified: 2024-11-21T05:21:49.550

Link: CVE-2020-27782

cve-icon Redhat

Severity : Important

Publid Date: 2021-01-25T00:00:00Z

Links: CVE-2020-27782 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses