UBUNTU-CVE-2019-19377

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2019-19377
Published: 29 Nov 2019, 16:15
Last modified:03 Jun 2026, 13:33

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 Nov 2019, 16:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated

Description

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux

    all | < 4.15.0-109.110 | < 5.4.0-31.35

  • ubuntu•linux-aws

    all | < 4.15.0-1077.81 | < 5.4.0-1011.11

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    < 5.3.0-1019.21~18.04.1

  • 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 | < 5.4.0-1012.12

  • ubuntu•linux-azure-4.15

    < 4.15.0-1091.101

  • ubuntu•linux-azure-5.3

    < 5.3.0-1022.23~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.15

    all

  • 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 | < 5.4.0-1011.11

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1080.90

  • ubuntu•linux-gcp-5.3

    < 5.3.0-1020.22~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1066.69

  • ubuntu•linux-gke-5.3

    < 5.3.0-1020.22~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-112.113~16.04.1 | < 5.3.0-53.47~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    all | < 4.15.0-1069.70 | < 5.4.0-1011.11

  • ubuntu•linux-lts-xenial

    all

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-oem

    < 4.15.0-1091.101

  • ubuntu•linux-oem-5.6

    < 5.6.0-1010.10

  • ubuntu•linux-oracle

    < 4.15.0-1050.54~16.04.1 | < 4.15.0-1048.52 | < 5.4.0-1011.11

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    < 5.3.0-1018.20~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1011.11

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.15.0-1065.69 | all

  • ubuntu•linux-raspi2-5.3

    < 5.3.0-1026.28~18.04.1

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    < 5.4.0-26.30 | all

  • ubuntu•linux-snapdragon

    < 4.15.0-1083.91

References (6)