High severity · published Dec 23, 2019
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…
7.5
CVSS
1%
EPSS
No
On KEV
Description
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.
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 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BA
Big-ip Analytics · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BD
Big-ip Domain Name System · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BF
Big-ip Fraud Protection Service · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BL
Big-ip Link Controller · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.5.2 through 11.6.5; 12.1.0 through 12.1.5; 13.0.0 before 13.1.3.2; 14.0.0 before 14.1.2.3; 15.0.0 before 15.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-6684
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-6684
Vendor Advisory
https://support.f5.com/csp/article/K95117754
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