synced 1 MIN AGO
01 Record

CVE-2020-24490

Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ.

UnratedPUBLISHEDCNA: intel
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 82.1% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/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
2021-02-02 21:29Z5 YR AGO
Last updated
2024-08-04 15:12Z2 YR AGO
Reserved
2020-08-19
Assigning CNA
intel
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
Data version
5.1
Document digest
5c89bb90ae31aabaf63d41da39124e6a107566bc9d1920fbe9facbf56b8d46e6

05 Affected products

VendorProductVersionsPlatforms
n/aBlueZ Advisoryall Linux kernel versions that support BlueZ—

06 References

07 Fixed in

Arch Linux

  • linux
    Fixed in 5.9.1.arch1-1
  • linux-hardened
    Fixed in 5.8.16.a-1
  • linux-lts
    Fixed in 5.4.72-1
  • linux-zen
    Fixed in 5.9.1.zen2-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • linux
    Fixed in 5.7.17-1

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

Debian 13

  • linux
    Fixed in 5.7.17-1

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

Debian 14

  • linux
    Fixed in 5.7.17-1

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

Ubuntu 16.04 LTS

  • linux-hwe
    Fixed in 4.15.0-122.124~16.04.1

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

Ubuntu 18.04 LTS

  • linux
    Fixed in 4.15.0-122.124
  • linux-hwe
    No fix yet
  • linux-hwe-5.4
    Fixed in 5.4.0-52.57~18.04.1
  • linux-hwe-edge
    No fix yet
  • linux-oem-osp1
    Fixed in 5.0.0-1071.77
  • linux-raspi-5.4
    Fixed in 5.4.0-1022.25~18.04.1
  • linux-raspi2-5.3
    Fixed in 5.3.0-1036.38

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

Ubuntu 20.04 LTS

  • linux
    Fixed in 5.4.0-52.57
  • linux-aws-5.15
    Fixed in 5.15.0-1075.82~20.04.1
  • linux-azure-5.15
    Fixed in 5.15.0-1078.87~20.04.1
  • linux-azure-fde
    No fix yet
  • linux-gcp-5.15
    Fixed in 5.15.0-1074.83~20.04.1
  • linux-gke
    No fix yet
  • linux-hwe-5.15
    Fixed in 5.15.0-130.140~20.04.1
  • linux-ibm-5.15
    Fixed in 5.15.0-1067.70~20.04.1
  • linux-intel-iotg-5.15
    Fixed in 5.15.0-1071.77~20.04.1
  • linux-lowlatency-hwe-5.15
    Fixed in 5.15.0-128.138~20.04.1
  • linux-nvidia-tegra-5.15
    Fixed in 5.15.0-1032.32~20.04.1
  • linux-oem-5.6
    Fixed in 5.6.0-1048.52
  • linux-oracle-5.15
    Fixed in 5.15.0-1072.78~20.04.1
  • linux-raspi
    Fixed in 5.4.0-1022.25
  • linux-raspi2
    No fix yet
  • linux-riscv
    Fixed in 5.4.0-34.38
  • linux-riscv-5.15
    Fixed in 5.15.0-1070.74~20.04.1

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

Ubuntu 22.04 LTS

  • linux
    Fixed in 5.15.0-130.140
  • linux-aws
    Fixed in 5.15.0-1076.83
  • linux-azure
    Fixed in 5.15.0-1078.87
  • linux-azure-fde
    Fixed in 5.15.0-1078.87.1
  • linux-gcp
    Fixed in 5.15.0-1074.83
  • linux-gke
    Fixed in 5.15.0-1072.78
  • linux-gkeop
    Fixed in 5.15.0-1057.64
  • linux-ibm
    Fixed in 5.15.0-1067.70
  • linux-intel-iotg
    Fixed in 5.15.0-1071.77
  • linux-kvm
    Fixed in 5.15.0-1071.76
  • linux-lowlatency
    Fixed in 5.15.0-128.138
  • linux-nvidia
    Fixed in 5.15.0-1070.71
  • linux-nvidia-tegra
    Fixed in 5.15.0-1032.32
  • linux-nvidia-tegra-igx
    Fixed in 5.15.0-1020.20
  • linux-oracle
    Fixed in 5.15.0-1073.79
  • linux-raspi
    Fixed in 5.15.0-1070.73
  • linux-realtime
    No fix yet
  • linux-riscv
    No fix yet
  • linux-xilinx-zynqmp
    Fixed in 5.15.0-1041.45

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

Ubuntu 24.04 LTS

  • linux
    Fixed in 6.8.0-35.35
  • linux-aws
    Fixed in 6.8.0-1009.9
  • linux-azure
    Fixed in 6.8.0-1008.8
  • linux-gcp
    Fixed in 6.8.0-1008.9
  • linux-gke
    Fixed in 6.8.0-1004.7
  • linux-ibm
    Fixed in 6.8.0-1006.6
  • linux-lowlatency
    Fixed in 6.8.0-35.35.1
  • linux-oem-6.8
    Fixed in 6.8.0-1006.6
  • linux-oracle
    Fixed in 6.8.0-1006.6
  • linux-raspi
    Fixed in 6.8.0-1005.5
  • linux-riscv
    Fixed in 6.8.0-35.35.1

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

Ubuntu Nvidia-BlueField 22.04 LTS

  • linux-bluefield
    Fixed in 5.15.0-1058.60

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

Ubuntu Pro 14.04 LTS

  • linux-lts-xenial
    Fixed in 4.4.0-262.296~14.04.1
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro

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

Ubuntu Pro 16.04 LTS

  • linux
    Fixed in 4.4.0-262.296
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

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

Ubuntu Pro FIPS-preview 22.04 LTS

  • linux-aws-fips
    No fix yet
  • linux-azure-fips
    No fix yet
  • linux-fips
    No fix yet
  • linux-gcp-fips
    No fix yet

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

Ubuntu Pro FIPS-updates 16.04 LTS

  • linux-fips
    Fixed in 4.4.0-1108.115
    Available with Ubuntu Pro: https://ubuntu.com/pro

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

Ubuntu Pro FIPS-updates 18.04 LTS

  • linux-aws-fips
    Fixed in 4.15.0-2031.32
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 4.15.0-2013.15
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 4.15.0-1045.52
    Available with Ubuntu Pro: https://ubuntu.com/pro

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

Ubuntu Pro FIPS-updates 20.04 LTS

  • linux-aws-fips
    Fixed in 5.4.0-1069.73+fips2
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.4.0-1073.76+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.4.0-1067.71~20.04.1
    Available with Ubuntu Pro: https://ubuntu.com/pro

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

Ubuntu Pro FIPS-updates 22.04 LTS

  • linux-aws-fips
    Fixed in 5.15.0-1076.83+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.15.0-1078.87+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.15.0-128.138+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.15.0-1073.81+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro

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

Ubuntu Pro FIPS 16.04 LTS

  • linux-fips
    No fix yet

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

Ubuntu Pro FIPS 18.04 LTS

  • linux-aws-fips
    No fix yet
  • linux-azure-fips
    No fix yet
  • linux-fips
    No fix yet
  • linux-gcp-fips
    No fix yet

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

Ubuntu Pro FIPS 20.04 LTS

  • linux-aws-fips
    No fix yet
  • linux-azure-fips
    No fix yet
  • linux-gcp-fips
    No fix yet

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

Ubuntu Pro Realtime 22.04 LTS

  • linux-intel-iot-realtime
    Fixed in 5.15.0-1071.73
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 5.15.0-1075.83
    Available with Ubuntu Pro: https://ubuntu.com/pro

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

Ubuntu Pro Realtime 24.04 LTS

  • linux-raspi-realtime
    Fixed in 6.8.0-2004.4
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 6.8.1-1002.2
    Available with Ubuntu Pro: https://ubuntu.com/pro

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.