PT-2019-18176 · F5 · Big-Ip

Published 2019-02-26 · Updated 2020-08-24 · CVE-2019-6594

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions BIG-IP versions 11.5.1 through 11.6.3.2 BIG-IP versions 12.1.3.4 through 12.1.3.7 BIG-IP versions 13.0.0 HF1 through 13.1.1.1 BIG-IP versions 14.0.0 through 14.0.0.2

Description The issue arises from the lack of protection against multiple zero length DATA FINs in the reassembly queue of Multi-Path TCP (MPTCP), potentially leading to an infinite loop under certain circumstances.

Recommendations For BIG-IP versions 11.5.1 through 11.6.3.2, update to a version outside of this range to resolve the issue. For BIG-IP versions 12.1.3.4 through 12.1.3.7, update to a version outside of this range to resolve the issue. For BIG-IP versions 13.0.0 HF1 through 13.1.1.1, update to a version outside of this range to resolve the issue. For BIG-IP versions 14.0.0 through 14.0.0.2, update to a version outside of this range to resolve the issue.

Fix

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2019-6594

Affected Products

Big-Ip

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2019-6594 · Security Note
• https://osv.dev/vulnerability/CVE-2019-6594 · Vendor Advisory
• https://support.f5.com/csp/article/K91026261 · Vendor Advisory