PT-2023-7393 · F5 · Big-Ip Virtual Edition+2

Published 2023-02-01 · Updated 2023-02-09 · CVE-2023-23555

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 Virtual Edition versions 15.1.4 through 15.1.8 BIG-IP Virtual Edition versions 14.1.5 through 14.1.5.3 BIG-IP SPK versions 1.5.0 through 1.6.0

Description The issue is related to the Traffic Management Microkernel (TMM) terminating when undisclosed traffic is received and the FastL4 profile is configured on a virtual server. This can cause a denial of service. The vulnerability is also associated with incorrect initialization of a resource in BIG-IP Access Policy Manager and other BIG-IP software modules.

Recommendations For BIG-IP Virtual Edition versions 15.1.4 through 15.1.8, update to a version after 15.1.8 to resolve the issue. For BIG-IP Virtual Edition versions 14.1.5 through 14.1.5.3, update to a version after 14.1.5.3 to resolve the issue. For BIG-IP SPK versions 1.5.0 through 1.6.0, update to a version after 1.6.0 to resolve the issue. As a temporary workaround, consider disabling the FastL4 profile on virtual servers until a patch is available.

Fix

Improper Initialization

Weakness Enumeration

CWE-665

Related Identifiers

BDU:2023-08430

CVE-2023-23555

Affected Products

Big-Ip Access Policy Manager

Big-Ip Spk

Big-Ip Virtual Edition

References · 7

• https://my.f5.com/manage/s/article/K24572686 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-23555 · Security Note
• https://osv.dev/vulnerability/CVE-2023-23555 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-08430 · Security Note
• https://vuldb.com/sv/?id.219973 · Note
• https://t.me/cvenotify/43339 · Telegram Post
• https://t.me/cibsecurity/57320 · Telegram Post