PT-2017-16925 · F5 · Big-Ip

Published 2017-11-22 · Updated 2021-12-14 · CVE-2017-6166

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions BIG-IP software versions 12.0.0 through 12.1.1

Description The issue affects the Traffic Management Microkernel (TMM) when processing fragmented packets, potentially causing it to crash. This occurs in cases where a virtual server is configured with a FastL4 profile. As a result, traffic processing is disrupted until TMM restarts. If the affected system is part of a device group, it triggers a failover to the peer device.

Recommendations For BIG-IP software versions 12.0.0 through 12.1.1, consider disabling the FastL4 profile on virtual servers as a temporary workaround until a patch is available. Restrict access to the virtual server configured with the FastL4 profile to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

CVE-2017-6166

Affected Products

Big-Ip

References · 5

• https://support.f5.com/csp/article/K65615624 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-6166 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-6166 · Security Note
• http://securityfocus.com/bid/102264 · Note
• http://securitytracker.com/id/1039949 · Note