UBUNTU-CVE-2020-27815

Advisory lineage Upstream: 1 Downstream: 5
Upstream
CVE-2020-27815
Published: 30 Nov 2020, 00:00
Last modified:03 Jun 2026, 13:34

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

30 Nov 2020, 00:00
Published
Vulnerability first disclosed
03 Jun 2026, 13:34
Last Modified
Vulnerability information updated

Description

A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Metrics

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

Affected Systems

  • ubuntu•linux

    all | < 4.4.0-203.235 | < 4.15.0-136.140 | < 5.4.0-66.74

  • ubuntu•linux-aws

    < 4.4.0-1086.90 | < 4.4.0-1122.136 | < 4.15.0-1094.101 | < 5.4.0-1038.40

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1038.40~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2037.39 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1094.101~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1108.120~14.04.1 | < 4.15.0-1108.120~16.04.1 | all | < 5.4.0-1040.42

  • ubuntu•linux-azure-4.15

    < 4.15.0-1108.120

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1040.42~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde-5.15

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2020.23 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-dell300x

    < 4.15.0-1012.16

  • ubuntu•linux-fips

    < 4.4.0-1056.62 | all | < 4.15.0-1053.61

  • ubuntu•linux-gcp

    < 4.15.0-1093.106~16.04.1 | all | < 5.4.0-1037.40

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1093.106

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1037.40~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1036.38

  • ubuntu•linux-gke-4.15

    < 4.15.0-1079.84

  • ubuntu•linux-gke-5.4

    < 5.4.0-1036.38~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1010.11

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1010.11~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-136.140~16.04.1 | all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-66.74~18.04.2

  • ubuntu•linux-hwe-5.8

    < 5.8.0-44.50~20.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1088.97 | < 4.15.0-1085.87 | < 5.4.0-1033.34

  • ubuntu•linux-lts-xenial

    < 4.4.0-203.235~14.04.1

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1011.12

  • ubuntu•linux-oem-5.6

    < 5.6.0-1048.52

  • ubuntu•linux-oracle

    < 4.15.0-1065.73~16.04.1 | < 4.15.0-1065.73 | < 5.4.0-1038.41

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1038.41~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1029.32

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1029.32~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1146.156 | < 4.15.0-1079.84 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.8

    < 5.8.0-17.19~20.04.1

Showing first 50 affected entries in server-rendered view.

References (8)