UBUNTU-CVE-2019-19053

Description

A memory leak in the rpmsg_eptdev_write_iter() function in drivers/rpmsg/rpmsg_char.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering copy_from_iter_full() failures, aka CID-bbe692e349e2.

CVSS Metrics

• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

• ubuntu•linux-aws-5.0

  < 5.0.0-1027.30

• ubuntu•linux-azure

  < 5.0.0-1035.37

• 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

  < 5.0.0-1033.34

• 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-5.0

  < 5.0.0-1032.33

• 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-oem-osp1

  < 5.0.0-1043.48

• ubuntu•linux-oracle-5.0

  < 5.0.0-1013.18

• 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 (5)

• https://ubuntu.com/security/CVE-2019-19053
• https://github.com/torvalds/linux/commit/bbe692e349e2a1edf3fe0a29a0e05899c9c94d51
• https://ubuntu.com/security/notices/USN-4300-1
• https://ubuntu.com/security/notices/USN-4301-1
• https://www.cve.org/CVERecord?id=CVE-2019-19053