PT-2020-18784 · F5 · F5 Big-Ip

Published 2020-04-30 · Updated 2021-07-21 · CVE-2020-5883

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 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 14.1.2.3 F5 BIG-IP versions 15.0.0 through 15.0.1

Description The issue occurs when a virtual server is configured with HTTP explicit proxy and has an attached HTTP PROXY REQUEST iRule. In this scenario, POST requests sent to the virtual server cause an xdata memory leak.

Recommendations For versions 13.1.0 through 13.1.3.1, consider disabling the HTTP PROXY REQUEST iRule to prevent the memory leak. For versions 14.0.0 through 14.0.1, consider disabling the HTTP PROXY REQUEST iRule to prevent the memory leak. For versions 14.1.0 through 14.1.2.3, consider disabling the HTTP PROXY REQUEST iRule to prevent the memory leak. For versions 15.0.0 through 15.0.1, consider disabling the HTTP PROXY REQUEST iRule to prevent the memory leak.

Fix

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2020-5883

Affected Products

F5 Big-Ip

References · 4

• https://osv.dev/vulnerability/CVE-2020-5883 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5883 · Security Note
• https://support.f5.com/csp/article/K12234501 · Vendor Advisory
• https://t.me/cvenotify/3470 · Telegram Post