01 Record
CVE-2023-53297
Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
HighPUBLISHEDCNA: Linux
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
02 Description
Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
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.
- EPSS probability
- 0.22% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 12.6% 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 2026-08-04.
- 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 08:11Z1 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-832Unlock of a Resource that is not LockedBase
- Data version
- 5.2
- Document digest
- 8cab1c91e6c282c1da3481daf2b4e3b694d23410fc65a5ffb0a4d2cbea8baa33
05 Affected products
VendorProductVersionsPlatforms
LinuxLinuxf2d38e77aa5f3effc143e7dd24da8acf02925958 to < 5f352a56f0e607e6ff539cbf12156bfd8af232be, 1351551aa9058e07a20a27a158270cf84fcde621 to < 6a27762340ad08643de3bc17fe1646ea489ca2e2, c02421992505c95c7f3c9ad59ee35e22eac60988 to < 2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d, d9ba36c22a7bb09d6bac4cc2f243eff05da53f43 to < 55410a9144c76ecda126e6cdec556dfcd8f343b2, ac6725a634f7e8c0330610a8527f20c730b61115 to < 116b9c002c894097adc2b8684db2d1da4229ed46, 348d446762e7c70778df8bafbdf3fa0df2123f58 to < fd269a0435f8e9943b7a57c5a59688848d42d449, a2a9339e1c9deb7e1e079e12e27a0265aea8421a to < 5134556c9be582793f30695c09d18a26fe1ff2d7, a2a9339e1c9deb7e1e079e12e27a0265aea8421a to < 25e97f7b1866e6b8503be349eeea44bb52d661ce, d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284, 4.14.313 to < 4.14.316, 4.19.281 to < 4.19.284, 5.4.241 to < 5.4.244, 5.10.178 to < 5.10.181, 5.15.108 to < 5.15.113, 6.1.25 to < 6.1.30, 6.2.12 to < 6.3, 6.3—
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be
- git.kernel.orghttps://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2
- git.kernel.orghttps://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d
- git.kernel.orghttps://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2
- git.kernel.orghttps://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46
- git.kernel.orghttps://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449
- git.kernel.orghttps://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7
- git.kernel.orghttps://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-553.81.1.el8_10
- kernel Fixed in 4.18.0-553.81.1.el8_10
- kernel-abi-stablelists Fixed in 4.18.0-553.81.1.el8_10
- kernel-core Fixed in 4.18.0-553.81.1.el8_10
- kernel-cross-headers Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-core Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-modules Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-modules-extra Fixed in 4.18.0-553.81.1.el8_10
- kernel-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-doc Fixed in 4.18.0-553.81.1.el8_10
- kernel-headers Fixed in 4.18.0-553.81.1.el8_10
- kernel-modules Fixed in 4.18.0-553.81.1.el8_10
- kernel-modules-extra Fixed in 4.18.0-553.81.1.el8_10
- kernel-rt Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-core Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-core Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-devel Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-modules Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-modules-extra Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-devel Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-modules Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-modules-extra Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-tools Fixed in 4.18.0-553.81.1.el8_10
- kernel-tools-libs Fixed in 4.18.0-553.81.1.el8_10
- kernel-tools-libs-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-core Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-modules Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-553.81.1.el8_10
- perf Fixed in 4.18.0-553.81.1.el8_10
- python3-perf Fixed in 4.18.0-553.81.1.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 4.18.0-553.81.1.el8_10
- kernel Fixed in 4.18.0-553.81.1.el8_10
- kernel-abi-stablelists Fixed in 4.18.0-553.81.1.el8_10
- kernel-core Fixed in 4.18.0-553.81.1.el8_10
- kernel-cross-headers Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-core Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-modules Fixed in 4.18.0-553.81.1.el8_10
- kernel-debug-modules-extra Fixed in 4.18.0-553.81.1.el8_10
- kernel-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-doc Fixed in 4.18.0-553.81.1.el8_10
- kernel-headers Fixed in 4.18.0-553.81.1.el8_10
- kernel-modules Fixed in 4.18.0-553.81.1.el8_10
- kernel-modules-extra Fixed in 4.18.0-553.81.1.el8_10
- kernel-rt Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-core Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-core Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-devel Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-modules Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-debug-modules-extra Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-devel Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-modules Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-rt-modules-extra Fixed in 4.18.0-553.81.1.rt7.422.el8_10
- kernel-tools Fixed in 4.18.0-553.81.1.el8_10
- kernel-tools-libs Fixed in 4.18.0-553.81.1.el8_10
- kernel-tools-libs-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-core Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-devel Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-modules Fixed in 4.18.0-553.81.1.el8_10
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-553.81.1.el8_10
- perf Fixed in 4.18.0-553.81.1.el8_10
- python3-perf Fixed in 4.18.0-553.81.1.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 6.1.37-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.3.7-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.3.7-1
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 5.4.0-162.179
- linux-aws Fixed in 5.4.0-1109.118
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1044.49~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1115.122
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1046.53~20.04.1
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-bluefield Fixed in 5.4.0-1070.76
- linux-gcp Fixed in 5.4.0-1112.121
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1041.49~20.04.1
- 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 5.15.0-83.92~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1056.61
- linux-ibm-5.15 Fixed in 5.15.0-1037.40~20.04.1
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1040.46~20.04.1
- linux-iot Fixed in 5.4.0-1021.22
- linux-kvm Fixed in 5.4.0-1098.104
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-83.92~20.04.1
- linux-nvidia-tegra-5.15 Fixed in 5.15.0-1017.17~20.04.1
- 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 5.4.0-1108.117
- 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 5.15.0-83.92
- linux-allwinner-5.19 No fix yet
- linux-aws Fixed in 5.15.0-1044.49
- 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 5.15.0-1046.53
- 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 5.15.0-1046.53.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-gcp Fixed in 5.15.0-1041.49
- 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 5.15.0-1041.46
- linux-gkeop Fixed in 5.15.0-1027.32
- 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 5.15.0-1037.40
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1039.45
- linux-kvm Fixed in 5.15.0-1041.46
- linux-lowlatency Fixed in 5.15.0-83.92
- 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 5.15.0-1032.32
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-tegra Fixed in 5.15.0-1017.17
- linux-nvidia-tegra-igx Fixed in 5.15.0-1004.4
- 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 5.15.0-1042.48
9 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 5.15.0-1023.25
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-aws-5.4 Fixed in 5.4.0-1109.118~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-5.4 Fixed in 5.4.0-1115.122~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-5.4 Fixed in 5.4.0-1112.121~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe-5.4 Fixed in 5.4.0-162.179~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-ibm-5.4 Fixed in 5.4.0-1056.61~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle-5.4 Fixed in 5.4.0-1108.117~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-raspi-5.4 Fixed in 5.4.0-1093.104~18.04.1Available 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-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1109.118+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1115.122+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1084.93Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1112.121+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 Realtime 22.04 LTS
- linux-intel-iot-realtime Fixed in 5.15.0-1038.40Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 5.15.0-1045.50Available 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.