PT-2020-18824 · F5 · Big-Ip

Published 2020-08-26 · Updated 2020-09-02 · CVE-2020-5926

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 14.1.0 through 14.1.2.6 F5 BIG-IP versions 15.0.0 through 15.0.1.3 F5 BIG-IP versions 15.1.0 through 15.1.0.4

Description The issue arises when a BIG-IP virtual server with a Session Initiation Protocol (SIP) ALG profile parses SIP messages containing a multi-part MIME payload with certain boundary strings, causing TMM to free memory to the wrong cache.

Recommendations For F5 BIG-IP versions 14.1.0 through 14.1.2.6, update to a version outside of this range to resolve the issue. For F5 BIG-IP versions 15.0.0 through 15.0.1.3, update to a version outside of this range to resolve the issue. For F5 BIG-IP versions 15.1.0 through 15.1.0.4, update to a version outside of this range to resolve the issue.

Fix

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2020-5926

Affected Products

Big-Ip

References · 3

• https://osv.dev/vulnerability/CVE-2020-5926 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5926 · Security Note
• https://support.f5.com/csp/article/K42830212 · Vendor Advisory