CVE-2019-6637

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-07-03 · updated 2026-06-17

Description

On BIG-IP (ASM) 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, Application logic abuse of ASM REST endpoints can lead to instability of BIG-IP system. Exploitation of this issue causes excessive memory consumption which results in the Linux kernel triggering OOM killer on arbitrary processes. The attack requires an authenticated user with role of "Guest" or greater privilege. Note: "No Access" cannot login so technically it's a role but a user with this access role cannot perform the attack.

Affected products

BIG-IP ASM: from 12.1.0 before 12.1.4.1; from 13.0.0 before 13.1.1.5; from 14.0.0 before 14.0.0.5; from 14.1.0 before 14.1.0.6 — fixed in 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6

How to fix

Upgrade to a fixed version: BIG-IP ASM 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6. Check the vendor advisory for mitigations.

References

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