Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2018-15311

Disclosure Date: October 10, 2018
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
5.9 Medium
Impact Score:
3.6
Exploitability Score:
2.2
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • f5

Products

  • big-ip access policy manager,
  • big-ip advanced firewall manager,
  • big-ip analytics,
  • big-ip application acceleration manager,
  • big-ip application security manager,
  • big-ip domain name system,
  • big-ip edge gateway,
  • big-ip fraud protection service,
  • big-ip global traffic manager,
  • big-ip link controller,
  • big-ip local traffic manager,
  • big-ip policy enforcement manager,
  • big-ip webaccelerator

Additional Info

Technical Analysis