Vulnerability Details : CVE-2021-40111
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.
Vulnerability category: Denial of service
Products affected by CVE-2021-40111
- cpe:2.3:a:apache:james:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40111
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40111
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-40111
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-40111
-
http://www.openwall.com/lists/oss-security/2022/01/04/3
oss-security - CVE-2021-40111: Apache James IMAP parsing Denial Of ServiceMailing List;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2022/01/04/3
oss-security - CVE-2021-40111: Apache James IMAP parsing Denial Of ServiceMailing List;Third Party Advisory
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