UBUNTU-CVE-2019-19816

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2019-19816
Published: 17 Dec 2019, 06:15
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

17 Dec 2019, 06:15
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 and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.

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 | < 4.4.0-201.233 | < 4.15.0-109.110

  • ubuntu•linux-aws

    < 4.4.0-1085.89 | < 4.4.0-1121.135 | < 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

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1055.61 | 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-hwe

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

  • ubuntu•linux-hwe-edge

    all | < 5.3.0-19.20~18.04.2

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1087.96 | < 4.15.0-1069.70

  • ubuntu•linux-lts-xenial

    < 4.4.0-201.233~14.04.1

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-oem

    < 4.15.0-1091.101

  • 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

    < 4.4.0-1145.155 | < 4.15.0-1065.69 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-snapdragon

    < 4.4.0-1149.159 | < 4.15.0-1083.91

References (6)