CVE-2020-14314

Aliases:UBUNTU-CVE-2020-14314DEBIAN-CVE-2020-14314
Advisory lineage Upstream: 0 Downstream: 28
Modified
Published: 15 Sept 2020, 00:00
Last modified:04 Aug 2024, 12:39

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.37% LOW
0% probability +0.32%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Sept 2020, 00:00
Published
Vulnerability first disclosed
04 Aug 2024, 12:39
Last Modified
Vulnerability information updated

Description

A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.

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: 0.37%• Percentile: 31%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04

  • debian•linux

    < 5.8.7-1 | < 5.8.7-1 | < 5.8.7-1 | < 5.8.7-1

  • ubuntu•linux

    all | < 4.4.0-193.224 | < 4.15.0-121.123 | < 5.4.0-51.56

  • ubuntu•linux-aws

    < 4.4.0-1081.85 | < 4.4.0-1117.131 | < 4.15.0-1086.91 | < 5.4.0-1028.29

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1028.29~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2030.31 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1085.90~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1098.109~14.04.1 | < 4.15.0-1098.109~16.04.1 | all | < 5.4.0-1031.32

  • ubuntu•linux-azure-4.15

    < 4.15.0-1099.110

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1031.32~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2012.14 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1048.53 | all | < 4.15.0-1044.50

  • ubuntu•linux-gcp

    < 4.15.0-1086.98~16.04.1 | all | < 5.4.0-1028.29

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1086.98

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1028.29~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke-4.15

    < 4.15.0-1072.76

  • ubuntu•linux-gke-5.4

    < 5.4.0-1027.28~18.04.1

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1003.3

  • ubuntu•linux-hwe

    < 4.15.0-120.122~16.04.1 | all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-51.56~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1082.91 | < 4.15.0-1077.79 | < 5.4.0-1026.27

  • ubuntu•linux-lts-xenial

    < 4.4.0-193.224~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1099.109

  • ubuntu•linux-oem-5.6

    < 5.6.0-1048.52

  • ubuntu•linux-oracle

    < 4.15.0-1056.61~16.04.1 | < 4.15.0-1057.62 | < 5.4.0-1028.29

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1028.29~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1021.24

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1021.24~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1141.151 | < 4.15.0-1073.78 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    < 5.4.0-36.41

  • ubuntu•linux-snapdragon

    < 4.4.0-1145.155 | < 4.15.0-1089.98

  • debian•debian_linux

    9.0

  • linux kernel•kernel

    < 5.9-rc2

  • linux•linux_kernel

    ≤ 5.8.9 | 5.9.0:rc1

  • starwindsoftware•starwind_virtual_san

    v8:build12533 | v8:build12658 | v8:build12859 | v8:build13170 | v8:build13586 | v8:build13861

References (19)