CVE-2024-56645

Aliases:UBUNTU-CVE-2024-56645DEBIAN-CVE-2024-56645
Advisory lineage Upstream: 0 Downstream: 57
Modified
Published: 27 Dec 2024, 15:02
Last modified:05 Aug 2026, 11:45

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
0.68% LOW
1% probability +0.65%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Dec 2024, 15:02
Published
Vulnerability first disclosed
05 Aug 2026, 11:45
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939_session_new(): fix skb reference counting Since j1939_session_skb_queue() does an extra skb_get() for each new skb, do the same for the initial one in j1939_session_new() to avoid refcount underflow. [mkl: clean up commit message]

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
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.68%• Percentile: 51%

Affected Systems

  • debian•linux

    < 5.10.234-1 | < 6.1.123-1 | < 6.12.5-1 | < 6.12.5-1

  • debian•linux-6.1

    < 6.1.128-1~deb11u1

  • ubuntu•linux

    < 5.4.0-211.231 | < 5.15.0-135.146 | < 6.8.0-58.60

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 5.4.0-1142.152 | < 5.15.0-1080.87 | < 6.8.0-1027.29

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1080.87~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1142.152~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-6.8

    < 6.8.0-1027.29~22.04.1

  • ubuntu•linux-aws-fips

    < 5.4.0-1142.153+fips1 | all | < 5.15.0-1080.87+fips1

  • ubuntu•linux-azure

    all | < 5.4.0-1147.154 | < 5.15.0-1084.93 | < 6.8.0-1027.32

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1086.95~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1147.154~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.11

    < 6.11.0-1012.12~24.04.1

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-6.8

    < 6.8.0-1027.32~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1147.154+fips1 | all | < 5.15.0-1083.92+fips1

  • ubuntu•linux-azure-nvidia

    < 6.8.0-1014.15

  • ubuntu•linux-bluefield

    all | < 5.4.0-1101.108 | < 5.15.0-1062.64

  • ubuntu•linux-fips

    < 5.4.0-1116.126 | all | < 5.15.0-135.146+fips1 | < 6.8.0-78.78+fips1

  • ubuntu•linux-gcp

    all | < 5.4.0-1145.154 | < 5.15.0-1079.88 | < 6.8.0-1028.30

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1081.90~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1145.154~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.11

    < 6.11.0-1011.11~24.04.1

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-6.5

    all

  • ubuntu•linux-gcp-6.8

    < 6.8.0-1028.30~22.04.1

  • ubuntu•linux-gcp-fips

    < 5.4.0-1145.154+fips1 | all | < 5.15.0-1079.88+fips1

Showing first 50 affected entries in server-rendered view.

References (49)