CVE-2021-40110
Denial of Service in Apache James
EPSS 0.67%
Description
In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.
How to fix CVE-2021-40110
To remediate CVE-2021-40110, upgrade the affected package to a fixed version below.
- Maven/org.apache.james:james-server—upgrade to 3.6.1 or later
Is CVE-2021-40110 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.1.0, < 3.6.1