High severity · published Feb 12, 2021
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
7.5
CVSS
1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Application Security Manager · F5
11.6.1 before 11.6.5.2; 12.1.0 before 12.1.5.3; 13.1.0 before 13.1.3.6; 14.1.0 before 14.1.2.8; 15.1.0 before 15.1.2; 16.0.0 before 16.0.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22985
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22985
Vendor Advisory
https://support.f5.com/csp/article/K88162221
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