UBUNTU-CVE-2023-32233

Advisory lineage Upstream: 1 Downstream: 14
Upstream
CVE-2023-32233
Published: 08 May 2023, 20:15
Last modified:03 Jun 2026, 13:36

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 May 2023, 20:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:36
Last Modified
Vulnerability information updated

Description

In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux

    all | < 4.4.0-241.275 | < 4.15.0-212.223 | < 5.4.0-150.167 | < 5.15.0-73.80

  • ubuntu•linux-aws

    < 4.4.0-1119.125 | < 4.4.0-1157.172 | < 4.15.0-1157.170 | < 5.4.0-1103.111 | < 5.15.0-1037.41

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1037.41~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1103.111~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2096.102 | all | < 5.4.0-1103.111+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1157.170~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1166.181~14.04.1 | < 4.15.0-1166.181~16.04.1 | all | < 5.4.0-1109.115 | < 5.15.0-1039.46

  • ubuntu•linux-azure-4.15

    < 4.15.0-1166.181

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1039.46~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1109.115~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1039.46.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2075.81 | all | < 5.4.0-1109.115+fips1

  • ubuntu•linux-bluefield

    < 5.15.0-1017.19 | < 5.4.0-1064.70 | < 5.15.0-1017.19 | all

  • ubuntu•linux-fips

    < 4.4.0-1089.96 | all | < 4.15.0-1112.123 | < 5.4.0-1078.87

  • ubuntu•linux-gcp

    < 4.15.0-1151.167~16.04.1 | all | < 5.4.0-1106.115 | < 5.15.0-1035.43

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1151.167

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1035.43~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1106.115~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2059.64 | all | < 5.4.0-1106.115+fips1

  • ubuntu•linux-gke

    < 5.4.0-1100.107 | < 5.15.0-1034.39

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1034.39~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1070.74 | < 5.15.0-1021.26

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1021.26~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    < 4.15.0-212.223~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.15

    < 5.15.0-73.80~20.04.1

  • ubuntu•linux-hwe-5.19

    < 5.19.0-43.44~22.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-150.167~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1050.55 | < 5.15.0-1031.34

Showing first 50 affected entries in server-rendered view.

References (19)