UBUNTU-CVE-2019-18811

Description

A memory leak in the sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering sof_get_ctrl_copy_params() failures, aka CID-45c1380358b1.

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

  < 5.3.0-1013.14~18.04.1

• ubuntu•linux-azure-edge

  all

• ubuntu•linux-azure-fde

  all

• ubuntu•linux-gcp-5.3

  < 5.3.0-1012.13~18.04.1

• ubuntu•linux-gcp-edge

  all

• ubuntu•linux-gke

  all

• ubuntu•linux-gke-5.3

  < 5.3.0-1012.13~18.04.1

• ubuntu•linux-gkeop

  all

• ubuntu•linux-gkeop-5.15

  all

• ubuntu•linux-hwe

  < 5.3.0-40.32~18.04.1

• 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

  < 5.3.0-1018.20~18.04.1

• ubuntu•linux-realtime

  all

• ubuntu•linux-riscv

  all

References (4)

• https://ubuntu.com/security/CVE-2019-18811
• https://github.com/torvalds/linux/commit/45c1380358b12bf2d1db20a5874e9544f56b34ab
• https://ubuntu.com/security/notices/USN-4284-1
• https://www.cve.org/CVERecord?id=CVE-2019-18811