CVE-2018-15311

Medium

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.

SeverityMedium
CVSS5.9
Exploit probability—
ProductF5 Big-ip Local Traffic Manager
PublishedOct 10, 2018
First seenOct 10, 2018

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
f5 big-ip_local_traffic_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_application_acceleration_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_advanced_firewall_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_analytics11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_access_policy_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_application_security_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_domain_name_system11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_edge_gateway11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_fraud_protection_service11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_global_traffic_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_link_controller11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_policy_enforcement_manager11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—
f5 big-ip_webaccelerator11.5.1 ≤ v ≤ 11.5.6, 11.6.0.0 ≤ v ≤ 11.6.3.2, 12.1.0.0 ≤ v ≤ 12.1.3.5, 13.0.0.0 ≤ v ≤ 13.1.0.5—

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