CVE-2018-5500

MediumCVSS 5.9/10Last modified Jun 17, 2026

Description

On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.

Metrics

CVSS 3.0 5.9/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

VendorProductVersions
F5 Networks, Inc.BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe13.0.0; 12.1.0 - 12.1.3.1; 11.6.1 - 11.6.2

References

Timeline

Published
Mar 1, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-55015.9In some circumstances, on F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, any 11.6.x or 11.5.x release, or 11.2.1, TCP DNS profile alloCVE-2018-55027.5On F5 BIG-IP versions 13.0.0 - 13.1.0.3, attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certCVE-2018-55037.5On F5 BIG-IP versions 13.0.0 - 13.1.0.3 or 12.0.0 - 12.1.3.1, TMM may restart when processing a specifically crafted page through a virtual CVE-2018-55048.1In some circumstances, the Traffic Management Microkernel (TMM) does not properly handle certain malformed Websockets requests/responses, whCVE-2018-55055.9On F5 BIG-IP versions 13.1.0 - 13.1.0.3, when ASM and AVR are both provisioned, TMM may restart while processing DNS requests when the virtuCVE-2018-55069.8In F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.1, 11.5.1-11.5.5, or 11.2.1 the Apache modules apache_auth_token_mod and mod_auth_f5_auth_token.cppCVE-2018-55077.5On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blCVE-2018-55085.9On F5 BIG-IP PEM versions 13.0.0, 12.0.0-12.1.3.1, 11.6.0-11.6.2, 11.5.1-11.5.5, or 11.2.1, under certain conditions, TMM may crash when proCVE-2018-55097.5On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, CVE-2018-55107.5On F5 BIG-IP 11.5.4 HF4-11.5.5, the Traffic Management Microkernel (TMM) may restart when processing a specific sequence of packets on IPv6 CVE-2018-55117.2On F5 BIG-IP 13.1.0-13.1.0.3 or 13.0.0, when authenticated administrative users execute commands in the Traffic Management User Interface (TCVE-2018-55127.5On F5 BIG-IP 13.1.0-13.1.0.5, when Large Receive Offload (LRO) and SYN cookies are enabled (default settings), undisclosed traffic patterns
CVE-2018-5500: Medium severity, CVSS 5.9 | Vulnix