Vulnerability in F5 Big-Ip
CVE-2019-6684
On versions 15.0.0-15.0.1.1, 14.0.0-14.1.2.2, 13.1.0-13.1.3.1, 12.1.0-12.1.5, and 11.5.2-11.6.5.1, under certain conditions, a multi-bladed BIG-IP Virtual Clustered Multiprocessing (vCMP) may drop broadcast packets when they are rebroadcast to the vCMP guest secondary blades. An attacker can leverage the fragmented broadcast IP packets to perform any type of fragmentation-based attack.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- F5 Big-Ip — versions 15.0.0-15.0.1.1, 14.0.0-14.1.2.2, 13.1.0-13.1.3.1
- F5 Big-Ip Access Policy Manager
- F5 Big-Ip Advanced Firewall Manager
- F5 Big-Ip Analytics
- F5 Big-Ip Application Acceleration Manager
- F5 Big-Ip Application Security Manager
- F5 Big-Ip Domain Name System
- F5 Big-Ip Fraud Protection Service
- F5 Big-Ip Global Traffic Manager
- F5 Big-Ip Link Controller
References
- support.f5.com/csp/article/K95117754 (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-6684?
- CVE-2019-6684 is a high-severity vulnerability in F5 Big-Ip. CVSS score: 7.5/10. Published 2019-12-23.
- How severe is CVE-2019-6684?
- High severity. CVSS v3 base score is 7.5 out of 10.