synced 13 MIN AGO
01 Record

CVE-2024-56661

tipc: fix NULL deref in cleanup_bearer()

MediumPUBLISHEDCNA: Linux
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

02 Description

tipc: fix NULL deref in cleanup_bearer()

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 12.9% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-12-27 15:06Z1 YR AGO
Last updated
2026-05-11 20:56Z5 MO AGO
Reserved
2024-12-27
Assigning CNA
Linux
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-476NULL Pointer DereferenceBase
Data version
5.2
Document digest
0306d0a83f9cdb3a216c0ab653c76b340d685c1b3b1dc7e2a17221d6bc286ac3

05 Affected products

VendorProductVersionsPlatforms
LinuxLinux4e69457f9dfae67435f3ccf29008768eae860415 to < d1d4dfb189a115734bff81c411bc58d9e348db7d, 650ee9a22d7a2de8999fac2d45983597a0c22359 to < a771f349c95d3397636861a0a6462d4a7a7ecb25, d2a4894f238551eae178904e7f45af87577074fd to < 07b569eda6fe6a1e83be5a587abee12d1303f95e, d62d5180c036eeac09f80660edc7a602b369125f to < 754ec823ee53422361da7958a8c8bf3275426912, d00d4470bf8c4282617a3a10e76b20a9c7e4cffa to < 89ecda492d0a37fd00aaffc4151f1f44c26d93ac, e48b211c4c59062cb6dd6c2c37c51a7cc235a464 to < a852c82eda4991e21610837aaa160965be71f5cc, 6a2fa13312e51a621f652d522d7e2df7066330b6 to < b04d86fff66b15c07505d226431f808c15b1703c, 5.4.287 to < 5.4.288, 5.10.231 to < 5.10.232, 5.15.174 to < 5.15.175, 6.1.120 to < 6.1.121, 6.6.66 to < 6.6.67, 6.12.5 to < 6.12.6—

06 References

07 Fixed in

Debian 12

  • linux
    Fixed in 6.1.123-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 6.12.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 6.12.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux-hwe-edge
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • linux-aws-5.0
    No fix yet
  • linux-aws-5.3
    No fix yet
  • linux-azure
    No fix yet
  • linux-azure-5.3
    No fix yet
  • linux-azure-edge
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-5.3
    No fix yet
  • linux-gke-4.15
    No fix yet
  • linux-gke-5.4
    No fix yet
  • linux-gkeop-5.4
    No fix yet
  • linux-hwe
    No fix yet
  • linux-hwe-edge
    No fix yet
  • linux-oem
    No fix yet
  • linux-oracle-5.0
    No fix yet
  • linux-oracle-5.3
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • linux-aws-5.11
    No fix yet
  • linux-aws-5.13
    No fix yet
  • linux-aws-5.8
    No fix yet
  • linux-azure-5.11
    No fix yet
  • linux-azure-5.13
    No fix yet
  • linux-azure-5.8
    No fix yet
  • linux-azure-fde
    No fix yet
  • linux-gcp-5.11
    No fix yet
  • linux-gcp-5.13
    No fix yet
  • linux-gcp-5.8
    No fix yet
  • linux-gke
    No fix yet
  • linux-gke-5.15
    No fix yet
  • linux-gkeop
    No fix yet
  • linux-gkeop-5.15
    No fix yet
  • linux-hwe-5.11
    No fix yet
  • linux-hwe-5.13
    No fix yet
  • linux-hwe-5.8
    No fix yet
  • linux-intel-5.13
    No fix yet
  • linux-oem-5.10
    No fix yet
  • linux-oem-5.13
    No fix yet
  • linux-oem-5.14
    No fix yet
  • linux-oem-5.6
    No fix yet
  • linux-oracle-5.11
    No fix yet
  • linux-oracle-5.13
    No fix yet
  • linux-oracle-5.8
    No fix yet
  • linux-raspi2
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.11
    No fix yet
  • linux-riscv-5.8
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux-allwinner-5.19
    No fix yet
  • linux-aws-5.19
    No fix yet
  • linux-aws-6.2
    No fix yet
  • linux-aws-6.5
    No fix yet
  • linux-azure-5.19
    No fix yet
  • linux-azure-6.2
    No fix yet
  • linux-azure-6.5
    No fix yet
  • linux-azure-fde-5.19
    No fix yet
  • linux-azure-fde-6.2
    No fix yet
  • linux-gcp-5.19
    No fix yet
  • linux-gcp-6.2
    No fix yet
  • linux-gcp-6.5
    No fix yet
  • linux-hwe-5.19
    No fix yet
  • linux-hwe-6.2
    No fix yet
  • linux-hwe-6.5
    No fix yet
  • linux-intel-iot-realtime
    No fix yet
  • linux-lowlatency-hwe-5.19
    No fix yet
  • linux-lowlatency-hwe-6.2
    No fix yet
  • linux-lowlatency-hwe-6.5
    No fix yet
  • linux-nvidia-6.2
    No fix yet
  • linux-nvidia-6.5
    No fix yet
  • linux-oem-5.17
    No fix yet
  • linux-oem-6.0
    No fix yet
  • linux-oem-6.1
    No fix yet
  • linux-oem-6.5
    No fix yet
  • linux-oracle-6.5
    No fix yet
  • linux-realtime
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.19
    No fix yet
  • linux-riscv-6.5
    No fix yet
  • linux-starfive-5.19
    No fix yet
  • linux-starfive-6.2
    No fix yet
  • linux-starfive-6.5
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • linux-raspi-realtime
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.