Vulnerability Details : CVE-2021-22985
On BIG-IP APM version 16.0.x before 16.0.1.1, under certain conditions, when processing VPN traffic with APM, TMM consumes excessive memory. A malicious, authenticated VPN user may abuse this to perform a DoS attack against the APM. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Vulnerability category: Denial of service
Products affected by CVE-2021-22985
- cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 13.1.0 and before (<) 13.1.3.6cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 16.0.0 and before (<) 16.0.1.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 11.6.1 and before (<) 11.6.5.2cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 14.1.0 and before (<) 14.1.2.8cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 12.1.0 and before (<) 12.1.5.3cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-22985
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-22985
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-22985
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-22985
-
https://support.f5.com/csp/article/K88162221
Vendor Advisory
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