CVE-2018-5518: Medium severity F5 Big-ip Local Traffic Manager vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this F5 BIG-IP vulnerability?
The vulnerability ID for this F5 BIG-IP vulnerability is CVE-2018-5518.
What is the severity of CVE-2018-5518?
The severity of CVE-2018-5518 is medium with a CVSS score of 5.4.
Which versions of F5 BIG-IP are affected by CVE-2018-5518?
F5 BIG-IP versions 12.0.0 through 12.1.3.3 and 13.0.0 through 13.1.0.5 are affected by CVE-2018-5518.
What is the impact of CVE-2018-5518?
Exploiting CVE-2018-5518 can cause a disruption of service on adjacent VCMP guests running on the same host.
How can I fix CVE-2018-5518?
There is currently no known fix for CVE-2018-5518. It is recommended to apply the necessary patches or updates provided by the vendor when they become available.