CVE-2020-12114

Aliases:UBUNTU-CVE-2020-12114DEBIAN-CVE-2020-12114
Advisory lineage Upstream: 0 Downstream: 31
Modified
Published: 04 May 2020, 11:42
Last modified:04 Aug 2024, 11:48

Vulnerability Summary

Overall Risk (default)
low
19/100
CVSS Score
4.7 MEDIUM
v3.1 (nvd)
EPSS Score
0.44% LOW
0% probability +0.40%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 May 2020, 11:42
Published
Vulnerability first disclosed
04 Aug 2024, 11:48
Last Modified
Vulnerability information updated

Description

A pivot_root race condition in fs/namespace.c in the Linux kernel 4.4.x before 4.4.221, 4.9.x before 4.9.221, 4.14.x before 4.14.178, 4.19.x before 4.19.119, and 5.x before 5.3 allows local users to cause a denial of service (panic) by corrupting a mountpoint reference counter.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•LOW•Score: 1.9AV:L/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.44%• Percentile: 38%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • debian•linux

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

  • ubuntu•linux

    < 3.13.0-180.231 | < 4.4.0-184.214 | < 4.15.0-106.107 | < 5.4.0-37.41

  • ubuntu•linux-aws

    < 4.4.0-1073.77 | < 4.4.0-1109.120 | < 4.15.0-1073.77 | < 5.4.0-1015.15

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    < 5.3.0-1023.25~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2018.18 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1073.77~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1089.99~14.04.1 | < 4.15.0-1089.99~16.04.1 | all | < 5.4.0-1016.16

  • ubuntu•linux-azure-4.15

    < 4.15.0-1089.99

  • ubuntu•linux-azure-5.3

    < 5.3.0-1028.29~18.04.1

  • 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

    < 4.4.0-1041.46 | all | < 4.15.0-1034.39

  • ubuntu•linux-gcp

    < 4.15.0-1077.87~16.04.1 | all | < 5.4.0-1015.15

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1077.87

  • ubuntu•linux-gcp-5.3

    < 5.3.0-1026.28~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1063.66

  • ubuntu•linux-gke-5.0

    < 5.0.0-1042.43

  • ubuntu•linux-gke-5.3

    < 5.3.0-1026.28~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-106.107~16.04.1 | < 5.3.0-59.53~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1075.82 | < 4.15.0-1067.68 | < 5.4.0-1015.15

  • ubuntu•linux-lts-xenial

    < 4.4.0-184.214~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1087.97

  • ubuntu•linux-oem-5.6

    < 5.6.0-1011.11

  • ubuntu•linux-oem-osp1

    < 5.0.0-1059.64

  • ubuntu•linux-oracle

    < 4.15.0-1045.49~16.04.1 | < 4.15.0-1045.49 | < 5.4.0-1015.15

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    < 5.3.0-1024.26~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1012.12

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1134.143 | < 4.15.0-1063.67 | all

  • ubuntu•linux-raspi2-5.3

    < 5.3.0-1027.29~18.04.1

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    < 5.4.0-27.31 | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1138.146 | < 4.15.0-1080.87

  • linux•linux_kernel

    ≥ 4.4.0, < 4.4.221 | ≥ 4.9.0, < 4.9.221 | ≥ 4.14, < 4.14.178 | ≥ 4.19, < 4.19.119 | ≥ 5.0, < 5.3

References (27)