CVE-2019-19036

Aliases:UBUNTU-CVE-2019-19036DEBIAN-CVE-2019-19036
Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 21 Nov 2019, 02:00
Last modified:05 Aug 2024, 02:09

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
1.84% LOW
2% probability +0.70%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

21 Nov 2019, 02:00
Published
Vulnerability first disclosed
05 Aug 2024, 02:09
Last Modified
Vulnerability information updated

Description

btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 1.84%• Percentile: 78%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•linux

    < 5.3.7-1 | < 5.3.7-1 | < 5.3.7-1 | < 5.3.7-1

  • ubuntu•linux

    all | < 4.15.0-109.110

  • ubuntu•linux-aws

    all | < 4.15.0-1077.81

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2022.22 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1079.83~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1091.101~14.04.1 | < 4.15.0-1091.101~16.04.1 | all

  • ubuntu•linux-azure-4.15

    < 4.15.0-1091.101

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1114.123~20.04.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    all | < 4.15.0-1037.42

  • ubuntu•linux-gcp

    < 4.15.0-1080.90~16.04.1 | all

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1080.90

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1066.69

  • ubuntu•linux-gke-5.0

    < 5.0.0-1045.46

  • ubuntu•linux-hwe

    < 4.15.0-112.113~16.04.1 | < 5.3.0-26.28~18.04.1

  • ubuntu•linux-hwe-edge

    all | < 5.3.0-22.24~18.04.1

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    all | < 4.15.0-1069.70

  • ubuntu•linux-lts-xenial

    all

  • ubuntu•linux-oem

    < 4.15.0-1091.101

  • ubuntu•linux-oem-osp1

    < 5.0.0-1065.70

  • ubuntu•linux-oracle

    < 4.15.0-1050.54~16.04.1 | < 4.15.0-1048.52

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.15.0-1065.69 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-snapdragon

    < 4.15.0-1083.91

  • linux•linux_kernel

    ≤ 5.3.12

References (10)