CVE-2023-21400

Aliases:UBUNTU-CVE-2023-21400DEBIAN-CVE-2023-21400
Advisory lineage Upstream: 0 Downstream: 26
Modified
Published: 12 Jul 2023, 23:53
Last modified:13 Feb 2025, 16:40

Vulnerability Summary

Overall Risk (default)
medium
37/100
CVSS Score
6.7 MEDIUM
v3.1 (nvd)
EPSS Score
0.26% LOW
0% probability +0.22%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

12 Jul 2023, 23:53
Published
Vulnerability first disclosed
13 Feb 2025, 16:40
Last Modified
Vulnerability information updated

Description

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.26%• Percentile: 18%

Techniques & Countermeasures

  • CWE-667•Improper Locking

    The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

Affected Systems

  • debian•linux

    < 5.10.191-1 | < 5.18.2-1 | < 5.18.2-1 | < 5.18.2-1

  • ubuntu•linux

    < 5.4.0-205.225 | < 5.15.0-82.91

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 5.4.0-1139.149 | < 5.15.0-1043.48

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1043.48~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1139.149~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-fips

    < 5.4.0-1139.149+fips1 | all

  • ubuntu•linux-azure

    all | < 5.4.0-1143.150 | < 5.15.0-1045.52

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1045.52~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1143.150~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1045.52.1

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1143.150+fips1 | all

  • ubuntu•linux-bluefield

    all | < 5.4.0-1098.105 | < 5.15.0-1022.24

  • ubuntu•linux-fips

    < 5.4.0-1112.122 | all

  • ubuntu•linux-gcp

    all | < 5.4.0-1142.151 | < 5.15.0-1040.48

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1040.48~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1142.151~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-6.5

    all

  • ubuntu•linux-gcp-fips

    < 5.4.0-1142.151+fips1 | all

  • ubuntu•linux-gke

    all | < 5.15.0-1040.45

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    all | < 5.15.0-1026.31

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1026.31~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

Showing first 50 affected entries in server-rendered view.

References (28)