UBUNTU-CVE-2019-19043

Description

A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Systems

• ubuntu•linux-azure-5.3

  < 5.3.0-1016.17~18.04.1

• ubuntu•linux-azure-edge

  all

• ubuntu•linux-azure-fde

  all

• ubuntu•linux-gcp-5.3

  < 5.3.0-1014.15~18.04.1

• ubuntu•linux-gcp-edge

  all

• ubuntu•linux-gke

  all

• ubuntu•linux-gke-5.3

  < 5.3.0-1014.15~18.04.1

• ubuntu•linux-gkeop

  all

• ubuntu•linux-gkeop-5.15

  all

• ubuntu•linux-hwe

  < 5.3.0-42.34~18.04.1

• ubuntu•linux-hwe-edge

  all | all

• ubuntu•linux-intel-iot-realtime

  all

• ubuntu•linux-raspi-realtime

  all

• ubuntu•linux-raspi2

  all

• ubuntu•linux-raspi2-5.3

  < 5.3.0-1019.21~18.04.1

• ubuntu•linux-realtime

  all

• ubuntu•linux-riscv

  all | all

References (4)

• https://ubuntu.com/security/CVE-2019-19043
• https://github.com/torvalds/linux/commit/27d461333459d282ffa4a2bdb6b215a59d493a8f
• https://ubuntu.com/security/notices/USN-4300-1
• https://www.cve.org/CVERecord?id=CVE-2019-19043