CVEvulnerability

CVE-2020-5941

7.5 HIGH Published 2020-11-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-11-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

Description

On BIG-IP versions 16.0.0-16.0.0.1 and 15.1.0-15.1.0.5, using the RESOLV::lookup command within an iRule may cause the Traffic Management Microkernel (TMM) to generate a core file and restart. This issue occurs when data exceeding the maximum limit of a hostname passes to the RESOLV::lookup command.

Affected configurations

• f5 big-ip access policy manager (>= 15.1.0 < 15.1.1) • f5 big-ip access policy manager (>= 16.0.0 < 16.0.1) • f5 big-ip advanced firewall manager (>= 15.1.0 < 15.1.1) • f5 big-ip advanced firewall manager (>= 16.0.0 < 16.0.1) • f5 big-ip analytics (>= 15.1.0 < 15.1.1) • f5 big-ip analytics (>= 16.0.0 < 16.0.1) • f5 big-ip application acceleration manager (>= 15.1.0 < 15.1.1) • f5 big-ip application acceleration manager (>= 16.0.0 < 16.0.1) • f5 big-ip application security manager (>= 15.1.0 < 15.1.1) • f5 big-ip application security manager (>= 16.0.0 < 16.0.1) • f5 big-ip domain name system (>= 15.1.0 < 15.1.1) • f5 big-ip domain name system (>= 16.0.0 < 16.0.1) • f5 big-ip fraud protection service (>= 15.1.0 < 15.1.1) • f5 big-ip fraud protection service (>= 16.0.0 < 16.0.1) • f5 big-ip global traffic manager (>= 15.1.0 < 15.1.1) • f5 big-ip global traffic manager (>= 16.0.0 < 16.0.1) • f5 big-ip link controller (>= 15.1.0 < 15.1.1) • f5 big-ip link controller (>= 16.0.0 < 16.0.1) • f5 big-ip local traffic manager (>= 15.1.0 < 15.1.1) • f5 big-ip local traffic manager (>= 16.0.0 < 16.0.1) • f5 big-ip policy enforcement manager (>= 15.1.0 < 15.1.1) • f5 big-ip policy enforcement manager (>= 16.0.0 < 16.0.1)

References