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[email protected]CVE-2018-15311

HistoryOct 10, 2018 - 2:29 p.m.

CVE-2018-15311

2018-10-1014:29:00

[email protected]

web.nvd.nist.gov

f5 big-ip

cve-2018-15311

tcp traffic

vulnerability

nvd

lro

failover event

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.1 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

47.1%

JSON

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.

Affected configurations

NVD

Node

f5big-ip_local_traffic_managerRange11.5.1–11.5.6

f5big-ip_local_traffic_managerRange11.6.0.0–11.6.3.2

f5big-ip_local_traffic_managerRange12.1.0.0–12.1.3.5

f5big-ip_local_traffic_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_application_acceleration_managerRange11.5.1–11.5.6

f5big-ip_application_acceleration_managerRange11.6.0.0–11.6.3.2

f5big-ip_application_acceleration_managerRange12.1.0.0–12.1.3.5

f5big-ip_application_acceleration_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_advanced_firewall_managerRange11.5.1–11.5.6

f5big-ip_advanced_firewall_managerRange11.6.0.0–11.6.3.2

f5big-ip_advanced_firewall_managerRange12.1.0.0–12.1.3.5

f5big-ip_advanced_firewall_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_analyticsRange11.5.1–11.5.6

f5big-ip_analyticsRange11.6.0.0–11.6.3.2

f5big-ip_analyticsRange12.1.0.0–12.1.3.5

f5big-ip_analyticsRange13.0.0.0–13.1.0.5

Node

f5big-ip_access_policy_managerRange11.5.1–11.5.6

f5big-ip_access_policy_managerRange11.6.0.0–11.6.3.2

f5big-ip_access_policy_managerRange12.1.0.0–12.1.3.5

f5big-ip_access_policy_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_application_security_managerRange11.5.1–11.5.6

f5big-ip_application_security_managerRange11.6.0.0–11.6.3.2

f5big-ip_application_security_managerRange12.1.0.0–12.1.3.5

f5big-ip_application_security_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_domain_name_systemRange11.5.1–11.5.6

f5big-ip_domain_name_systemRange11.6.0.0–11.6.3.2

f5big-ip_domain_name_systemRange12.1.0.0–12.1.3.5

f5big-ip_domain_name_systemRange13.0.0.0–13.1.0.5

Node

f5big-ip_edge_gatewayRange11.5.1–11.5.6

f5big-ip_edge_gatewayRange11.6.0.0–11.6.3.2

f5big-ip_edge_gatewayRange12.1.0.0–12.1.3.5

f5big-ip_edge_gatewayRange13.0.0.0–13.1.0.5

Node

f5big-ip_fraud_protection_serviceRange11.5.1–11.5.6

f5big-ip_fraud_protection_serviceRange11.6.0.0–11.6.3.2

f5big-ip_fraud_protection_serviceRange12.1.0.0–12.1.3.5

f5big-ip_fraud_protection_serviceRange13.0.0.0–13.1.0.5

Node

f5big-ip_global_traffic_managerRange11.5.1–11.5.6

f5big-ip_global_traffic_managerRange11.6.0.0–11.6.3.2

f5big-ip_global_traffic_managerRange12.1.0.0–12.1.3.5

f5big-ip_global_traffic_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_link_controllerRange11.5.1–11.5.6

f5big-ip_link_controllerRange11.6.0.0–11.6.3.2

f5big-ip_link_controllerRange12.1.0.0–12.1.3.5

f5big-ip_link_controllerRange13.0.0.0–13.1.0.5

Node

f5big-ip_policy_enforcement_managerRange11.5.1–11.5.6

f5big-ip_policy_enforcement_managerRange11.6.0.0–11.6.3.2

f5big-ip_policy_enforcement_managerRange12.1.0.0–12.1.3.5

f5big-ip_policy_enforcement_managerRange13.0.0.0–13.1.0.5

Node

f5big-ip_webacceleratorRange11.5.1–11.5.6

f5big-ip_webacceleratorRange11.6.0.0–11.6.3.2

f5big-ip_webacceleratorRange12.1.0.0–12.1.3.5

f5big-ip_webacceleratorRange13.0.0.0–13.1.0.5

CPENameOperatorVersion
f5:big-ip_local_traffic_managerf5 big-ip local traffic managerle11.5.6
f5:big-ip_local_traffic_managerf5 big-ip local traffic managerle11.6.3.2
f5:big-ip_local_traffic_managerf5 big-ip local traffic managerle12.1.3.5
f5:big-ip_local_traffic_managerf5 big-ip local traffic managerle13.1.0.5

CPE	Name	Operator	Version
f5:big-ip_local_traffic_manager	f5 big-ip local traffic manager	le	11.5.6
f5:big-ip_local_traffic_manager	f5 big-ip local traffic manager	le	11.6.3.2
f5:big-ip_local_traffic_manager	f5 big-ip local traffic manager	le	12.1.3.5
f5:big-ip_local_traffic_manager	f5 big-ip local traffic manager	le	13.1.0.5

CNA Affected

[
  {
    "product": "BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)",
    "vendor": "F5 Networks, Inc.",
    "versions": [
      {
        "status": "affected",
        "version": "13.0.0-13.1.0.5"
      },
      {
        "status": "affected",
        "version": "12.1.0-12.1.3.5"
      },
      {
        "status": "affected",
        "version": "11.6.0-11.6.3.2"
      },
      {
        "status": "affected",
        "version": "11.5.1-11.5.6"
      }
    ]
  }
]

References

support.f5.com/csp/article/K07550539

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.1 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

47.1%

JSON

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