PT-2019-18268 · F5 · F5 Big-Ip

Published 2019-12-23 · Updated 2020-08-24 · CVE-2019-6686

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 13.1.0 through 13.1.3.1 F5 BIG-IP versions 14.0.0 through 14.0.1 F5 BIG-IP versions 14.1.0 through 14.1.2 F5 BIG-IP versions 15.0.0 through 15.0.1.1

Description The Traffic Management Microkernel (TMM) may stop responding when the total number of diameter connections and pending messages on a single virtual server reaches 32K.

Recommendations For F5 BIG-IP versions 13.1.0 through 13.1.3.1, consider restricting the number of diameter connections and pending messages on a single virtual server to prevent TMM from stopping. For F5 BIG-IP versions 14.0.0 through 14.0.1, consider restricting the number of diameter connections and pending messages on a single virtual server to prevent TMM from stopping. For F5 BIG-IP versions 14.1.0 through 14.1.2, consider restricting the number of diameter connections and pending messages on a single virtual server to prevent TMM from stopping. For F5 BIG-IP versions 15.0.0 through 15.0.1.1, consider restricting the number of diameter connections and pending messages on a single virtual server to prevent TMM from stopping.

Fix

Related Identifiers

CVE-2019-6686

Affected Products

F5 Big-Ip

References · 3

• https://support.f5.com/csp/article/K55812535 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-6686 · Security Note
• https://osv.dev/vulnerability/CVE-2019-6686 · Vendor Advisory