CVE-2019-11477 (NVD)

2019-06-19

Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). 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 commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.

Products Ubuntu_linux, 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, Traffix_signaling_delivery_controller, Connect_secure, Linux_kernel, Pulse_policy_secure, Pulse_secure_virtual_application_delivery_controller, Enterprise_linux, Enterprise_linux_atomic_host, Enterprise_linux_aus, Enterprise_linux_eus, Enterprise_mrg
Type Integer Overflow or Wraparound (CWE-190)
First patch - None (likely due to unavailable code)
Patches • https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=3b4929f65b0d8249f19a50245cd88ed1a2f78cff
• https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
Links • https://www.oracle.com/security-alerts/cpujan2020.html
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0006
• https://security.netapp.com/advisory/ntap-20190625-0001/
• http://www.vmware.com/security/advisories/VMSA-2019-0010.html
• http://www.openwall.com/lists/oss-security/2019/06/28/2