CVE-2019-18885

Aliases:UBUNTU-CVE-2019-18885DEBIAN-CVE-2019-18885
Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 14 Nov 2019, 13:53
Last modified:05 Aug 2024, 02:02

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
1.22% LOW
1% probability +0.47%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

14 Nov 2019, 13:53
Published
Vulnerability first disclosed
05 Aug 2024, 02:02
Last Modified
Vulnerability information updated

Description

fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka CID-09ba3bc9dd15.

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
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 1.22%• Percentile: 67%

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

    < 5.2.6-1 | < 5.2.6-1 | < 5.2.6-1 | < 5.2.6-1

  • ubuntu•linux

    all | < 4.4.0-173.203 | < 4.15.0-88.88

  • ubuntu•linux-aws

    < 4.4.0-1061.65 | < 4.4.0-1101.112 | < 4.15.0-1060.62

  • ubuntu•linux-aws-5.0

    < 5.0.0-1024.27~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2018.18 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1060.62~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1071.76~14.04.1 | < 4.15.0-1071.76 | < 5.0.0-1029.31~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1028.33 | all

  • ubuntu•linux-gcp

    < 4.15.0-1055.59 | < 5.0.0-1029.30~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1052.55

  • ubuntu•linux-gke-5.0

    < 5.0.0-1029.30~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-88.88~16.04.1 | < 5.3.0-26.28~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1065.72 | < 4.15.0-1053.53

  • ubuntu•linux-lts-xenial

    < 4.4.0-173.203~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1073.83

  • ubuntu•linux-oem-osp1

    < 5.0.0-1037.42

  • ubuntu•linux-oracle

    < 4.15.0-1033.36~16.04.1 | < 4.15.0-1033.36

  • ubuntu•linux-oracle-5.0

    < 5.0.0-1010.15~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1128.137 | < 4.15.0-1055.59

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1132.140 | < 4.15.0-1072.79

  • linux•linux_kernel

    < 5.1

References (20)