User controlled `request.getHeader("Referer")`, `request.getRequestURL()` and `request.getQueryString()` are used to build and run a regex expression. The attacker doesn't have to use a browser and may send a specially crafted Referer header programmatically. Since the attacker controls the string and the regex pattern he may cause a ReDoS by regex catastrophic backtracking on the server side. This problem has been fixed in Roller 6.0.2.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2021-08-18T07:50:10

Updated: 2024-08-03T23:50:43.188Z

Reserved: 2021-05-26T00:00:00

Link: CVE-2021-33580

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-08-18T08:15:06.173

Modified: 2021-08-26T01:25:41.707

Link: CVE-2021-33580

cve-icon Redhat

No data.