VulnerabilityModified
CVE-2021-22985
A malicious, authenticated VPN user may abuse this to perform a DoS attack against the APM.
HIGH 7.5EPSS 1.01%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.01% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- f5/big-ip application security manager
- Source
- f5sirt@f5.com
References
- https://support.f5.com/csp/article/K88162221Vendor Advisory
- https://support.f5.com/csp/article/K88162221Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.