SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-40111

This can be used for a Denial Of Service attack.

MEDIUM 6.5EPSS 2.12%

Does this matter?

Lower severity and a low EPSS score (2.12%). Track it; it rarely justifies an emergency change on its own.

Description

In Apache James, while fuzzing with Jazzer the IMAP parsing stack, we discover that crafted APPEND and STATUS IMAP command could be used to trigger infinite loops resulting in expensive CPU computations and OutOfMemory exceptions. This can be used for a Denial Of Service attack. The IMAP user needs to be authenticated to exploit this vulnerability. This affected Apache James prior to version 3.6.1. This vulnerability had been patched in Apache James 3.6.1 and higher. We recommend the upgrade.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
2.12% probability · 81th percentile
CISA KEV
Not listed
Weakness
CWE-835
Affected
apache/james
Source
security@apache.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.