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.
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
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 4.4.0-262.296~14.04.1Available 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 4.4.0-262.296Available 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 4.4.0-1108.115Available 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 4.15.0-2031.32Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2013.15Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1045.52Available 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+fips2Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1073.76+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1067.71~20.04.1Available 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+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.15.0-1078.87+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.15.0-128.138+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.15.0-1073.81+fips1Available 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 5.15.0-1071.73Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 5.15.0-1075.83Available 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 6.8.0-2004.4Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 6.8.1-1002.2Available 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.