CVE-2019-11479
High
Description
Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Linux Kernel
PublishedJun 19, 2019
First seenJun 19, 2019
Weakness typeCWE-405CWE-405
How to fix
Update
- linux linux_kernel4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11 or later
- f5 big-ip_advanced_firewall_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_access_policy_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_application_acceleration_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_link_controller11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_policy_enforcement_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_webaccelerator11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_application_security_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_local_traffic_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_fraud_protection_service11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_global_traffic_manager11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
- f5 big-ip_analytics11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.4 ≤ v < 4.4.182, 4.9 ≤ v < 4.9.182, 4.14 ≤ v < 4.14.127, 4.19 ≤ v < 4.19.52, 5.1 ≤ v < 5.1.11 | 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11 |
| f5 big-ip_advanced_firewall_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_access_policy_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_application_acceleration_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_link_controller | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_policy_enforcement_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_webaccelerator | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_application_security_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_local_traffic_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_fraud_protection_service | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_global_traffic_manager | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_analytics | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_edge_gateway | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| f5 big-ip_domain_name_system | 11.5.2 ≤ v < 11.6.5.1, 12.1.0 ≤ v < 12.1.5.1, 13.1.0 ≤ v < 13.1.3.2, 14.0.0 ≤ v < 14.0.1.1, 14.1.2 ≤ v < 14.1.2.1, 15.0.0 ≤ v < 15.0.1.1 | 11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1 |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 18.10, 19.04 | — |
| redhat enterprise_linux | 7.0 | — |
| f5 big-iq_centralized_management | 5.1.0 ≤ v ≤ 5.4.0, 6.0.0 ≤ v ≤ 6.1.0 | — |
| f5 enterprise_manager | 3.1.1 | — |
| f5 iworkflow | 2.3.0 | — |
| f5 traffix_signaling_delivery_controller | 5.0.0 ≤ v ≤ 5.1.0 | — |
| redhat virtualization_host | 4.0 | — |
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