CVE-2023-42754

Aliases:UBUNTU-CVE-2023-42754DEBIAN-CVE-2023-42754
Advisory lineage Upstream: 0 Downstream: 42
Modified
Published: 05 Oct 2023, 18:25
Last modified:06 Nov 2025, 19:47

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.41% LOW
0% probability +0.40%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

05 Oct 2023, 18:25
Published
Vulnerability first disclosed
06 Nov 2025, 19:47
Last Modified
Vulnerability information updated

Description

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

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: 0.41%• Percentile: 35%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

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

Affected Systems

  • debian•linux

    < 5.10.197-1 | < 6.1.55-1 | < 6.5.6-1 | < 6.5.6-1

  • ubuntu•linux

    < 4.4.0-248.282 | < 4.15.0-220.231 | < 5.4.0-169.187 | < 5.15.0-91.101

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 4.4.0-1125.131 | < 4.4.0-1163.178 | < 4.15.0-1163.176 | < 5.4.0-1116.126 | < 5.15.0-1051.56

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1051.56~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1116.126~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    < 6.2.0-1017.17~22.04.1

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2102.108 | < 5.4.0-1116.126+fips1 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1163.176~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1172.187~14.04.1 | < 4.15.0-1172.187~16.04.1 | all | < 5.4.0-1121.128 | < 5.15.0-1053.61

  • ubuntu•linux-azure-4.15

    < 4.15.0-1172.187

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1053.61~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1121.128~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    < 6.2.0-1018.18~22.04.1

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1053.61.1 | all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    < 6.2.0-1018.18~22.04.1.1

  • ubuntu•linux-azure-fde-6.8

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2081.87 | < 5.4.0-1121.128+fips1 | all

  • ubuntu•linux-bluefield

    all | < 5.4.0-1076.82 | < 5.15.0-1033.35

  • ubuntu•linux-fips

    < 4.4.0-1095.102 | all | < 4.15.0-1118.129 | < 5.4.0-1090.100

  • ubuntu•linux-gcp

    < 4.15.0-1157.174~16.04.1 | all | < 5.4.0-1120.129 | < 5.15.0-1048.56

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1157.174

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1048.56~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1120.129~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    < 6.2.0-1021.23~22.04.1

  • ubuntu•linux-gcp-fips

    < 4.15.0-2065.70 | < 5.4.0-1120.129+fips1 | all

  • ubuntu•linux-gke

    all | < 5.15.0-1048.53

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

Showing first 50 affected entries in server-rendered view.

References (36)