CVE-2019-11478

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.4.182 Linux kernel versions prior to 4.9.182 Linux kernel versions prior to 4.14.127 Linux kernel versions prior to 4.19.52 Linux kernel versions prior to 5.1.11

Description The issue is related to the TCP retransmission queue implementation in the Linux kernel when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could exploit this to cause a denial of service by sending a specially crafted sequence of SACK packets, leading to resource exhaustion.

Recommendations For Linux kernel versions prior to 4.4.182, update to version 4.4.182 or later. For Linux kernel versions prior to 4.9.182, update to version 4.9.182 or later. For Linux kernel versions prior to 4.14.127, update to version 4.14.127 or later. For Linux kernel versions prior to 4.19.52, update to version 4.19.52 or later. For Linux kernel versions prior to 5.1.11, update to version 5.1.11 or later.