PT-2019-18178 · F5 · Big-Ip

Published 2019-03-13 · Updated 2020-08-24 · CVE-2019-6596

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 11.5.1 through 11.5.8 BIG-IP versions 11.6.1 through 11.6.3.2 BIG-IP versions 12.1.0 through 12.1.3.6 BIG-IP versions 13.0.0 through 13.1.1.1 BIG-IP versions 14.0.0 through 14.0.0.2

Description The issue occurs when processing fragmented ClientHello messages in a DTLS session, which may cause memory corruption and eventually lead to a crash. Only systems offering DTLS connections via APM are impacted.

Recommendations For BIG-IP versions 11.5.1 through 11.5.8, update to a version outside of this range to resolve the issue. For BIG-IP versions 11.6.1 through 11.6.3.2, update to a version outside of this range to resolve the issue. For BIG-IP versions 12.1.0 through 12.1.3.6, update to a version outside of this range to resolve the issue. For BIG-IP versions 13.0.0 through 13.1.1.1, update to a version outside of this range to resolve the issue. For BIG-IP versions 14.0.0 through 14.0.0.2, update to a version outside of this range to resolve the issue.

Fix

Related Identifiers

CVE-2019-6596

Affected Products

Big-Ip

References · 4

• https://support.f5.com/csp/article/K97241515 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-6596 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-6596 · Security Note
• http://securityfocus.com/bid/107403 · Note