PT-2020-18831 · F5 · Big-Ip

Published 2020-10-29 · Updated 2020-11-09 · CVE-2020-5933

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions BIG-IP versions 11.6.1 through 11.6.5.1 BIG-IP versions 12.1.0 through 12.1.5.1 BIG-IP versions 13.1.0 through 13.1.3.4 BIG-IP versions 14.1.0 through 14.1.2.3 BIG-IP versions 15.1.0 through 15.1.0.5

Description When a BIG-IP system that has a virtual server configured with an HTTP compression profile processes compressed HTTP message payloads that require deflation, a Slowloris-style attack can trigger an out-of-memory condition on the BIG-IP system.

Recommendations For BIG-IP versions 11.6.1 through 11.6.5.1, consider disabling the HTTP compression profile until a patch is available. For BIG-IP versions 12.1.0 through 12.1.5.1, consider disabling the HTTP compression profile until a patch is available. For BIG-IP versions 13.1.0 through 13.1.3.4, consider disabling the HTTP compression profile until a patch is available. For BIG-IP versions 14.1.0 through 14.1.2.3, consider disabling the HTTP compression profile until a patch is available. For BIG-IP versions 15.1.0 through 15.1.0.5, consider disabling the HTTP compression profile until a patch is available.

Fix

Related Identifiers

CVE-2020-5933

Affected Products

Big-Ip

References · 5

• https://support.f5.com/csp/article/K26244025 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-5933 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5933 · Security Note
• https://t.me/cibsecurity/15757 · Telegram Post
• https://t.me/cvenotify/5356 · Telegram Post