CVE-2023-53305
Bluetooth: L2CAP: Fix use-after-free
02 Description
Bluetooth: L2CAP: Fix use-after-free
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 ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.23% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 13.9% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (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:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-08-04.
- 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
- 2025-09-16 16:11Z1 YR AGO
- Last updated
- 2026-08-05 09:13Z2 MO AGO
- Reserved
- 2025-09-16
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.8)
- CNA CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- 09b029b79ec60bf24ec4b808c9a9e8976dca08673b867bf466484be1581b9ae6
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/e76bab1b7afa580cd76362540fc37551ada4359b
- git.kernel.orghttps://git.kernel.org/stable/c/1a40c56e8bff3e424724d78a9a6b3272dd8a371d
- git.kernel.orghttps://git.kernel.org/stable/c/fe49aa73cca6608714477b74bfc6874b9db979df
- git.kernel.orghttps://git.kernel.org/stable/c/2958cf9f805b9f0bdc4a761bf6ea281eb8d44f8e
- git.kernel.orghttps://git.kernel.org/stable/c/548a6b64b3c0688f01119a6fcccceb41f8c984e4
- git.kernel.orghttps://git.kernel.org/stable/c/149daab45922ab1ac7f0cbeacab7251a46bf5e63
- git.kernel.orghttps://git.kernel.org/stable/c/255be68150291440657b2cdb09420b69441af3d8
- git.kernel.orghttps://git.kernel.org/stable/c/f752a0b334bb95fe9b42ecb511e0864e2768046f
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-553.79.1.el8_10
- kernel Fixed in 4.18.0-553.79.1.el8_10
- kernel-abi-stablelists Fixed in 4.18.0-553.79.1.el8_10
- kernel-core Fixed in 4.18.0-553.79.1.el8_10
- kernel-cross-headers Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-core Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-modules Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-modules-extra Fixed in 4.18.0-553.79.1.el8_10
- kernel-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-doc Fixed in 4.18.0-553.79.1.el8_10
- kernel-headers Fixed in 4.18.0-553.79.1.el8_10
- kernel-modules Fixed in 4.18.0-553.79.1.el8_10
- kernel-modules-extra Fixed in 4.18.0-553.79.1.el8_10
- kernel-rt Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-core Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-core Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-devel Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-modules Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-modules-extra Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-devel Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-modules Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-modules-extra Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-tools Fixed in 4.18.0-553.79.1.el8_10
- kernel-tools-libs Fixed in 4.18.0-553.79.1.el8_10
- kernel-tools-libs-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-core Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-modules Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-553.79.1.el8_10
- perf Fixed in 4.18.0-553.79.1.el8_10
- python3-perf Fixed in 4.18.0-553.79.1.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bpftool Fixed in 4.18.0-553.79.1.el8_10
- kernel Fixed in 4.18.0-553.79.1.el8_10
- kernel-abi-stablelists Fixed in 4.18.0-553.79.1.el8_10
- kernel-core Fixed in 4.18.0-553.79.1.el8_10
- kernel-cross-headers Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-core Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-modules Fixed in 4.18.0-553.79.1.el8_10
- kernel-debug-modules-extra Fixed in 4.18.0-553.79.1.el8_10
- kernel-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-doc Fixed in 4.18.0-553.79.1.el8_10
- kernel-headers Fixed in 4.18.0-553.79.1.el8_10
- kernel-modules Fixed in 4.18.0-553.79.1.el8_10
- kernel-modules-extra Fixed in 4.18.0-553.79.1.el8_10
- kernel-rt Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-core Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-core Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-devel Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-modules Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-debug-modules-extra Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-devel Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-modules Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-rt-modules-extra Fixed in 4.18.0-553.79.1.rt7.420.el8_10
- kernel-tools Fixed in 4.18.0-553.79.1.el8_10
- kernel-tools-libs Fixed in 4.18.0-553.79.1.el8_10
- kernel-tools-libs-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-core Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-devel Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-modules Fixed in 4.18.0-553.79.1.el8_10
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-553.79.1.el8_10
- perf Fixed in 4.18.0-553.79.1.el8_10
- python3-perf Fixed in 4.18.0-553.79.1.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 6.1.52-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.4.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.4.13-1
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 Fixed in 5.4.0-169.187
- linux-aws Fixed in 5.4.0-1116.126
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1051.56~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1121.128
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1053.61~20.04.1
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-bluefield Fixed in 5.4.0-1076.82
- linux-gcp Fixed in 5.4.0-1120.129
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1048.56~20.04.1
- 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-5.15 Fixed in 5.15.0-91.101~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1063.68
- linux-ibm-5.15 Fixed in 5.15.0-1044.47~20.04.1
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1046.52~20.04.1
- linux-iot Fixed in 5.4.0-1028.29
- linux-kvm Fixed in 5.4.0-1104.111
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-91.101~20.04.1
- linux-nvidia-tegra-5.15 Fixed in 5.15.0-1020.20~20.04.1
- 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 Fixed in 5.4.0-1115.124
- linux-oracle-5.11 No fix yet
10 further packages in Ubuntu 20.04 LTS not shown (first 40 listed).
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 5.15.0-91.101
- linux-allwinner-5.19 No fix yet
- linux-aws Fixed in 5.15.0-1051.56
- linux-aws-5.19 No fix yet
- linux-aws-6.2 No fix yet
- linux-aws-6.5 No fix yet
- linux-azure Fixed in 5.15.0-1053.61
- linux-azure-5.19 No fix yet
- linux-azure-6.2 No fix yet
- linux-azure-6.5 No fix yet
- linux-azure-fde Fixed in 5.15.0-1053.61.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-gcp Fixed in 5.15.0-1048.56
- linux-gcp-5.19 No fix yet
- linux-gcp-6.2 No fix yet
- linux-gcp-6.5 No fix yet
- linux-gke Fixed in 5.15.0-1048.53
- linux-gkeop Fixed in 5.15.0-1034.40
- linux-hwe-5.19 No fix yet
- linux-hwe-6.2 No fix yet
- linux-hwe-6.5 No fix yet
- linux-ibm Fixed in 5.15.0-1044.47
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1046.52
- linux-kvm Fixed in 5.15.0-1048.53
- linux-lowlatency Fixed in 5.15.0-91.101
- 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 Fixed in 5.15.0-1042.42
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-tegra Fixed in 5.15.0-1020.20
- linux-nvidia-tegra-igx Fixed in 5.15.0-1007.7
- 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 Fixed in 5.15.0-1049.55
10 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-azure-6.11 No fix yet
- linux-gcp-6.11 No fix yet
- linux-hwe-6.11 No fix yet
- linux-intel No fix yet
- linux-lowlatency-hwe-6.11 No fix yet
- linux-oem-6.11 No fix yet
- linux-oem-6.8 No fix yet
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
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 5.15.0-1033.35
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-aws No fix yet
- linux-azure No fix yet
- linux-lts-xenial No fix yet
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 No fix yet
- linux-aws No fix yet
- linux-aws-hwe No fix yet
- linux-azure No fix yet
- linux-gcp No fix yet
- linux-hwe No fix yet
- linux-kvm No fix yet
- linux-oracle No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- linux No fix yet
- linux-aws No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1116.126~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-4.15 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1121.128~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-4.15 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1120.129~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe-5.4 Fixed in 5.4.0-169.187~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-ibm-5.4 Fixed in 5.4.0-1063.68~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm No fix yet
- linux-oracle No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1115.124~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-raspi-5.4 Fixed in 5.4.0-1100.112~18.04.1Available 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-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 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 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-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1116.126+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1121.128+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1090.100Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1120.129+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-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 5.15.0-1044.46Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 5.15.0-1052.58Available 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.