CVE-2020-25284

Aliases:UBUNTU-CVE-2020-25284DEBIAN-CVE-2020-25284
Advisory lineage Upstream: 0 Downstream: 27
Modified
Published: 13 Sept 2020, 17:28
Last modified:04 Aug 2024, 15:33

Vulnerability Summary

Overall Risk (default)
low
16/100
CVSS Score
4.1 MEDIUM
v3.1 (nvd)
EPSS Score
0.31% LOW
0% probability +0.23%
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

The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap rbd block devices, aka CID-f44d04e696fe.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
  • v2.0•LOW•Score: 1.9AV:L/AC:M/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.31%• Percentile: 24%

Techniques & Countermeasures

  • CWE-863•Incorrect Authorization

    The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Affected Systems

  • debian•linux

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

  • ubuntu•linux

    all | < 4.4.0-197.229 | < 4.15.0-126.129 | < 5.4.0-56.62

  • ubuntu•linux-aws

    < 4.4.0-1082.86 | < 4.4.0-1118.132 | < 4.15.0-1088.93 | < 5.4.0-1030.31

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1030.31~18.04.1

  • 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 | < 5.4.0-1032.33

  • ubuntu•linux-azure-4.15

    < 4.15.0-1100.111

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1032.33~18.04.1

  • 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

    < 4.4.0-1051.57 | all | < 4.15.0-1046.53

  • ubuntu•linux-gcp

    < 4.15.0-1088.101~16.04.1 | all | < 5.4.0-1030.32

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1088.101

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1030.32~18.04.1

  • 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

    < 5.4.0-1030.32~18.04.1

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1005.6

  • ubuntu•linux-hwe

    < 4.15.0-126.129~16.04.1 | all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-56.62~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1084.93 | < 4.15.0-1079.81 | < 5.4.0-1028.29

  • ubuntu•linux-lts-xenial

    < 4.4.0-197.229~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1103.114

  • ubuntu•linux-oem-5.6

    < 5.6.0-1048.52

  • ubuntu•linux-oracle

    < 4.15.0-1059.65~16.04.1 | < 4.15.0-1059.65 | < 5.4.0-1030.32

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1030.32~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1023.26

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1023.26~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1142.152 | < 4.15.0-1074.79 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    < 5.4.0-37.42

  • ubuntu•linux-snapdragon

    < 4.4.0-1146.156 | < 4.15.0-1091.100

  • debian•debian_linux

    9.0

  • linux•linux_kernel

    < 5.8.9

  • opensuse•leap

    15.1

References (15)