Vulnerability Details : CVE-2018-5518
On F5 BIG-IP 13.0.0-13.1.0.5 or 12.0.0-12.1.3.3, malicious root users with access to a VCMP guest can cause a disruption of service on adjacent VCMP guests running on the same host. Exploiting this vulnerability causes the vCMPd process on the adjacent VCMP guest to restart and produce a core file. This issue is only exploitable on a VCMP guest which is operating in "host-only" or "bridged" mode. VCMP guests which are "isolated" are not impacted by this issue and do not provide mechanism to exploit the vulnerability. Guests which are deployed in "Appliance Mode" may be impacted however the exploit is not possible from an Appliance Mode guest. To exploit this vulnerability root access on a guest system deployed as "host-only" or "bridged" mode is required.
Products affected by CVE-2018-5518
- F5 » Big-ip Local Traffic ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Local Traffic ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Global Traffic ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Global Traffic ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Access Policy ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Access Policy ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Acceleration ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Acceleration ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Advanced Firewall ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Advanced Firewall ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Policy Enforcement ManagerVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Policy Enforcement ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Domain Name SystemVersions from including (>=) 13.0.0 and up to, including, (<=) 13.1.0cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
- F5 » Big-ip Domain Name SystemVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.3cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-5518
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-5518
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.3
|
LOW | AV:A/AC:M/Au:S/C:N/I:N/A:P |
4.4
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H |
1.0
|
4.0
|
NIST |
References for CVE-2018-5518
-
http://www.securitytracker.com/id/1040797
F5 BIG-IP vCMP Bug Lets Local Users on a Guest System Cause Denial of Service Conditions on Other Guest Systems - SecurityTrackerThird Party Advisory;VDB Entry
-
https://support.f5.com/csp/article/K03165684
Vendor Advisory
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