UBUNTU-CVE-2023-40283

Advisory lineage Upstream: 1 Downstream: 15
Upstream
CVE-2023-40283
Published: 14 Aug 2023, 03:15
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

14 Aug 2023, 03:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:36
Last Modified
Vulnerability information updated

Description

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk 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 | < 4.4.0-245.279 | < 4.15.0-218.229 | < 5.4.0-163.180 | < 5.15.0-84.93

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 4.4.0-1123.129 | < 4.4.0-1161.176 | < 4.15.0-1161.174 | < 5.4.0-1110.119 | < 5.15.0-1045.50

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1045.50~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1110.119~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    < 6.2.0-1012.12~22.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2100.106 | all | < 5.4.0-1110.119+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1161.174~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1170.185~14.04.1 | < 4.15.0-1170.185~16.04.1 | all | < 5.4.0-1116.123 | < 5.15.0-1047.54

  • ubuntu•linux-azure-4.15

    < 4.15.0-1170.185

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1047.54~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1116.123~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    < 6.2.0-1012.12~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1047.54.1

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2079.85 | all | < 5.4.0-1116.123+fips1

  • ubuntu•linux-bluefield

    < 5.15.0-1024.26 | < 5.4.0-1071.77 | < 5.15.0-1024.26 | all

  • ubuntu•linux-fips

    < 4.4.0-1093.100 | all | < 4.15.0-1116.127 | < 5.4.0-1085.94

  • ubuntu•linux-gcp

    < 4.15.0-1155.172~16.04.1 | all | < 5.4.0-1113.122 | < 5.15.0-1042.50

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1155.172

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1042.50~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1113.122~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    < 6.2.0-1014.14~22.04.1

  • ubuntu•linux-gcp-fips

    < 4.15.0-2063.68 | all | < 5.4.0-1113.122+fips1

  • ubuntu•linux-gke

    all | < 5.15.0-1042.47

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1077.81 | < 5.15.0-1028.33

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1028.33~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    < 4.15.0-218.229~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

Showing first 50 affected entries in server-rendered view.

References (19)