CVE-2019-19377

Aliases:UBUNTU-CVE-2019-19377DEBIAN-CVE-2019-19377
Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 29 Nov 2019, 15:55
Last modified:05 Aug 2024, 02:16

Vulnerability Summary

Overall Risk (default)
medium
42/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
3.4% LOW
3% probability +3.01%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

29 Nov 2019, 15:55
Published
Vulnerability first disclosed
05 Aug 2024, 02:16
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
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 3.40%• Percentile: 88%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • debian•linux

    < 5.6.7-1 | < 5.6.7-1 | < 5.6.7-1 | < 5.6.7-1

  • 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

    < 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 | < 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-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

  • linux•linux_kernel

    ≥ 2.6.12, < 4.19.156 | ≥ 4.20, < 5.4.33 | ≥ 5.5.0, < 5.5.18 | ≥ 5.6, < 5.6.5

  • netapp•active_iq_unified_manager

    na

  • netapp•cloud_backup

    na

  • netapp•solidfire_baseboard_management_controller_firmware

    na

  • netapp•steelstore_cloud_integrated_storage

    na

References (12)