CVE-2023-23454

Aliases:UBUNTU-CVE-2023-23454DEBIAN-CVE-2023-23454
Advisory lineage Upstream: 0 Downstream: 72
Modified
Published: 12 Jan 2023, 00:00
Last modified:20 Mar 2025, 20:55

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.31% LOW
0% probability +0.25%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Jan 2023, 00:00
Published
Vulnerability first disclosed
20 Mar 2025, 20:55
Last Modified
Vulnerability information updated

Description

cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

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

EPSS Trends

Current EPSS score: 0.31%• Percentile: 24%

Techniques & Countermeasures

  • CWE-843•Access of Resource Using Incompatible Type ('Type Confusion')

    The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Affected Systems

  • debian•linux

    < 5.10.162-1 | < 6.1.7-1 | < 6.1.7-1 | < 6.1.7-1

  • ubuntu•linux

    all | < 5.4.0-144.161 | < 5.15.0-69.76

  • ubuntu•linux-aws

    all | < 5.4.0-1097.105 | < 5.15.0-1033.37

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1033.37~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1097.105~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    all | < 5.4.0-1099.107+fips1

  • ubuntu•linux-aws-hwe

    all

  • ubuntu•linux-azure

    all | all | < 5.4.0-1104.110 | < 5.15.0-1035.42

  • ubuntu•linux-azure-4.15

    all

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1035.42~20.04.1

  • ubuntu•linux-azure-5.19

    < 5.19.0-1026.29~22.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1104.110~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    < 5.15.0-1035.42.1

  • ubuntu•linux-azure-fips

    all | < 5.4.0-1104.110+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1059.65 | < 5.15.0-1015.17

  • ubuntu•linux-fips

    all | < 5.4.0-1073.82

  • ubuntu•linux-gcp

    all | all | < 5.4.0-1101.110 | < 5.15.0-1031.38

  • ubuntu•linux-gcp-4.15

    all

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1031.38~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1101.110~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    all | < 5.4.0-1101.110+fips1

  • ubuntu•linux-gke

    < 5.4.0-1095.102 | < 5.15.0-1030.35

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1029.34~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1065.69 | < 5.15.0-1017.22

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1017.22~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    all | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.15

    < 5.15.0-69.76~20.04.1

  • ubuntu•linux-hwe-5.19

    < 5.19.0-42.43~22.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-144.161~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

Showing first 50 affected entries in server-rendered view.

References (23)