UBUNTU-CVE-2019-12984

Description

A NULL pointer dereference vulnerability in the function nfc_genl_deactivate_target() in net/nfc/netlink.c in the Linux kernel before 5.1.13 can be triggered by a malicious user-mode program that omits certain NFC attributes, leading to denial of service.

CVSS Metrics

• v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Systems

• ubuntu•linux

  < 4.15.0-58.64

• ubuntu•linux-aws

  < 4.15.0-1047.49

• ubuntu•linux-aws-fips

  < 4.15.0-2018.18 | all

• ubuntu•linux-aws-hwe

  < 4.15.0-1047.49~16.04.1

• ubuntu•linux-azure

  < 4.15.0-1059.64~14.04.1 | < 4.15.0-1055.60 | < 5.0.0-1014.14~18.04.1

• ubuntu•linux-azure-fde

  all

• ubuntu•linux-azure-fips

  < 4.15.0-2006.7 | all

• ubuntu•linux-gcp

  < 4.15.0-1040.42~16.04.1 | < 4.15.0-1040.42

• ubuntu•linux-gcp-fips

  all

• ubuntu•linux-gke

  all

• ubuntu•linux-gke-4.15

  < 4.15.0-1040.42

• ubuntu•linux-hwe

  < 4.15.0-58.64~16.04.1 | < 5.0.0-25.26~18.04.1

• ubuntu•linux-hwe-edge

  all

• ubuntu•linux-intel-iot-realtime

  all

• ubuntu•linux-kvm

  < 4.15.0-1042.42

• ubuntu•linux-nvidia

  all

• ubuntu•linux-oem

  < 4.15.0-1050.57

• ubuntu•linux-oem-osp1

  < 5.0.0-1018.20

• ubuntu•linux-oracle

  < 4.15.0-1021.23~16.04.1 | < 4.15.0-1021.23

• ubuntu•linux-raspi-realtime

  all

• ubuntu•linux-raspi2

  < 4.15.0-1043.46

• ubuntu•linux-realtime

  all

• ubuntu•linux-riscv

  all | all

• ubuntu•linux-snapdragon

  < 4.15.0-1060.66

References (6)

• https://ubuntu.com/security/CVE-2019-12984
• https://ubuntu.com/security/notices/USN-4093-1
• https://ubuntu.com/security/notices/USN-4094-1
• https://ubuntu.com/security/notices/USN-4117-1
• https://ubuntu.com/security/notices/USN-4118-1
• https://www.cve.org/CVERecord?id=CVE-2019-12984