PT-2018-17035 · F5 · F5 Big-Ip Apm

Published 2018-07-25 · Updated 2018-09-17 · CVE-2018-5541

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 ASM versions 11.5.1 through 11.5.6 F5 BIG-IP ASM versions 11.6.0 through 11.6.3.1 F5 BIG-IP ASM versions 12.1.0 through 12.1.3.5 F5 BIG-IP ASM versions 13.0.0 through 13.1.0.1

Description The issue occurs when F5 BIG-IP ASM is processing HTTP requests and encounters an unusually large number of parameters, leading to excessive CPU usage in the BIG-IP ASM bd process.

Recommendations For F5 BIG-IP ASM versions 11.5.1 through 11.5.6, update to a version outside of this range to resolve the issue. For F5 BIG-IP ASM versions 11.6.0 through 11.6.3.1, update to a version outside of this range to resolve the issue. For F5 BIG-IP ASM versions 12.1.0 through 12.1.3.5, update to a version outside of this range to resolve the issue. For F5 BIG-IP ASM versions 13.0.0 through 13.1.0.1, update to a version outside of this range to resolve the issue.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2018-5541

Affected Products

F5 Big-Ip Apm

References · 4

• https://osv.dev/vulnerability/CVE-2018-5541 · Vendor Advisory
• https://support.f5.com/csp/article/K12403422 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-5541 · Security Note
• http://securityfocus.com/bid/104906 · Note