PT-2018-17021 · F5 · F5 Big-Ip

Published 2018-06-27 · Updated 2019-10-03 · CVE-2018-5527

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 13.1.0 through 13.1.0.7

Description A remote attacker can force the Traffic Management Microkernel (tmm) to leak memory on virtual servers configured with a Client SSL or Server SSL profile that has the SSL Forward Proxy feature enabled. This results in increased system memory usage over time, potentially causing decreased performance or a system reboot due to memory exhaustion.

Recommendations For F5 BIG-IP versions 13.1.0 through 13.1.0.7, consider disabling the SSL Forward Proxy feature as a temporary workaround to minimize the risk of memory leakage until a patch is available.

Fix

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

Related Identifiers

CVE-2018-5527

Affected Products

F5 Big-Ip

References · 4

• https://osv.dev/vulnerability/CVE-2018-5527 · Vendor Advisory
• https://support.f5.com/csp/article/K20134942 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-5527 · Security Note
• http://securitytracker.com/id/1041196 · Note