Medium severity · published Jan 4, 2022
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…
6.5
CVSS
2.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JA
James · Apache
before 3.6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40111
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40111
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/04/3
Mailing List
https://www.openwall.com/lists/oss-security/2022/01/04/3
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