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.
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

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.