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CVE-2018-15311

Quick assessment

Affected
F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

F5 BIG-IP是美国F5公司的一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的多合一网络设备。 F5 BIG-IP中存在安全漏洞。在Large Receive Offload功能启用时，攻击者可利用该漏洞造成TMM重启。以下版本受到影响：F5 BIG-IP 13.0.0版本至13.1.0.5版本，12.1.0版本至12.1.3.5版本，11.6.0版本至11.6.3.2版本，11.5.1版本至11.5.6版本。

AI Predicted 5.9 Difficulty: Moderate EPSS 1.58% · P73
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I. Basic Information for CVE-2018-15311

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
F5 BIG-IP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 BIG-IP是美国F5公司的一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的多合一网络设备。 F5 BIG-IP中存在安全漏洞。在Large Receive Offload功能启用时，攻击者可利用该漏洞造成TMM重启。以下版本受到影响：F5 BIG-IP 13.0.0版本至13.1.0.5版本，12.1.0版本至12.1.3.5版本，11.6.0版本至11.6.3.2版本，11.5.1版本至11.5.6版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator) 13.0.0-13.1.0.5 -

II. Public POCs for CVE-2018-15311

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III. Intelligence Information for CVE-2018-15311

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Vendor Advisories for CVE-2018-15311 (1)

IV. Related Vulnerabilities

Same product: BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)
Same vendor: F5 Networks, Inc.

V. Comments for CVE-2018-15311

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