PT-2020-18829 · F5 · F5 Big-Ip

Published 2020-10-29 · Updated 2020-11-09 · CVE-2020-5931

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 11.6.1 through 11.6.5.2 F5 BIG-IP versions 12.1.0 through 12.1.5.2 F5 BIG-IP versions 13.1.0 through 13.1.3.4 F5 BIG-IP versions 14.1.0 through 14.1.2.3 F5 BIG-IP versions 15.1.0 through 15.1.0.5

Description The issue arises when virtual servers with a OneConnect profile incorrectly handle WebSockets related HTTP response headers, causing the Traffic Management Microkernel (TMM) to restart.

Recommendations For F5 BIG-IP versions 11.6.1 through 11.6.5.2, consider disabling the OneConnect profile as a temporary workaround until a patch is available. For F5 BIG-IP versions 12.1.0 through 12.1.5.2, consider disabling the OneConnect profile as a temporary workaround until a patch is available. For F5 BIG-IP versions 13.1.0 through 13.1.3.4, consider disabling the OneConnect profile as a temporary workaround until a patch is available. For F5 BIG-IP versions 14.1.0 through 14.1.2.3, consider disabling the OneConnect profile as a temporary workaround until a patch is available. For F5 BIG-IP versions 15.1.0 through 15.1.0.5, consider disabling the OneConnect profile as a temporary workaround until a patch is available.

Fix

Related Identifiers

CVE-2020-5931

Affected Products

F5 Big-Ip

References · 4

• https://osv.dev/vulnerability/CVE-2020-5931 · Vendor Advisory
• https://support.f5.com/csp/article/K25400442 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5931 · Security Note
• https://t.me/cvenotify/5355 · Telegram Post