CVE-2018-15311 Information

Description

When F5 BIG-IP 13.0.0-13.1.0.5 12.1.0-12.1.3.5 11.6.0-11.6.3.2 or 11.5.1-11.5.6 is processing specially crafted TCP traffic with the Large Receive Offload (LRO) feature enabled TMM may crash leading to a failover event. This vulnerability is not exposed unless LRO is enabled so most affected customers will be on 13.1.x. LRO has been available since 11.4.0 but is not enabled by default until 13.1.0.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://support.f5.com/csp/article/K07550539

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9