PT-2021-15326 · F5 · Big-Ip

Published 2021-03-31 · Updated 2021-04-05 · CVE-2021-22999

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.x through 14.1.3 BIG-IP versions 15.0.x through 15.0.x

Description The BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed.

Recommendations For BIG-IP versions 14.1.x through 14.1.3, update to version 14.1.4 or later. For BIG-IP versions 15.0.x through 15.0.x, update to version 15.1.0 or later.

Fix

Related Identifiers

CVE-2021-22999

Affected Products

Big-Ip

References · 5

• https://osv.dev/vulnerability/CVE-2021-22999 · Vendor Advisory
• https://support.f5.com/csp/article/K02333782 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22999 · Security Note
• https://t.me/cvenotify/12668 · Telegram Post
• https://t.me/cvenotify/12417 · Telegram Post