CVE-2020-25285

Aliases:UBUNTU-CVE-2020-25285DEBIAN-CVE-2020-25285
Advisory lineage Upstream: 0 Downstream: 28
Modified
Published: 13 Sept 2020, 17:28
Last modified:04 Aug 2024, 15:33

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.4 MEDIUM
v3.1 (nvd)
EPSS Score
0.27% LOW
0% probability +0.19%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Sept 2020, 17:28
Published
Vulnerability first disclosed
04 Aug 2024, 15:33
Last Modified
Vulnerability information updated

Description

A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.4CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.4AV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.27%• Percentile: 20%

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.

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

  • CWE-787•Out-of-bounds Write

    The product writes 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

    < 5.8.10-1 | < 5.8.10-1 | < 5.8.10-1 | < 5.8.10-1

  • ubuntu•linux

    all | < 4.4.0-193.224 | < 4.15.0-126.129 | < 5.4.0-51.56

  • ubuntu•linux-aws

    < 4.4.0-1081.85 | < 4.4.0-1117.131 | < 4.15.0-1088.93 | < 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

    < 4.15.0-2031.32 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1088.93~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1100.111~14.04.1 | < 4.15.0-1100.111~16.04.1 | all | < 5.4.0-1031.32

  • ubuntu•linux-azure-4.15

    < 4.15.0-1100.111

  • 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

    < 4.15.0-2013.15 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-dell300x

    < 4.15.0-1007.11

  • ubuntu•linux-fips

    < 4.4.0-1048.53 | all | < 4.15.0-1046.53

  • ubuntu•linux-gcp

    < 4.15.0-1088.101~16.04.1 | all | < 5.4.0-1028.29

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1088.101

  • 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

    < 4.15.0-1074.79

  • 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

    < 4.15.0-126.129~16.04.1 | 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 | < 4.15.0-1079.81 | < 5.4.0-1026.27

  • ubuntu•linux-lts-xenial

    < 4.4.0-193.224~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1103.114

  • ubuntu•linux-oem-5.6

    < 5.6.0-1053.57

  • ubuntu•linux-oracle

    < 4.15.0-1059.65~16.04.1 | < 4.15.0-1059.65 | < 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 | < 4.15.0-1074.79 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    < 5.4.0-36.41

  • ubuntu•linux-snapdragon

    < 4.4.0-1145.155 | < 4.15.0-1091.100

  • debian•debian_linux

    9.0

  • linux•linux_kernel

    < 5.8.8

References (17)