PT-2020-18792 · F5 · Big-Ip

Published 2020-04-30 · Updated 2021-07-21 · CVE-2020-5891

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 BIG-IP versions 14.1.0 through 14.1.2.3 BIG-IP versions 15.0.0 through 15.0.1.2 BIG-IP versions 15.1.0 through 15.1.0.1

Description The issue arises from undisclosed HTTP/2 requests that can cause a denial of service when sent to a virtual server configured with the Fallback Host setting and a server-side HTTP/2 profile.

Recommendations For BIG-IP versions 14.1.0 through 14.1.2.3, update to a version that includes a fix for this issue. For BIG-IP versions 15.0.0 through 15.0.1.2, update to a version that includes a fix for this issue. For BIG-IP versions 15.1.0 through 15.1.0.1, update to a version that includes a fix for this issue.

Fix

Related Identifiers

CVE-2020-5891

Affected Products

Big-Ip

References · 3

• https://osv.dev/vulnerability/CVE-2020-5891 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5891 · Security Note
• https://support.f5.com/csp/article/K58494243 · Vendor Advisory