Apache James IMAP parsing Denial Of Service
CVE-2021-40111

6.5MEDIUM

Key Information:

Vendor
Apache
Status
Apache James
Vendor
CVE Published:
4 January 2022

Summary

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.

Affected Version(s)

Apache James Apache James <= 3.6.0

References

https://www.openwall.com/lists/oss-security/2022/01/04/3
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/01/04/3
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

The Apache James PMC would like to thanks Benoit TELLIER for the report.
.