CVE-2023-53305
published 2025-09-16CVE-2023-53305: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2cap_le_command_rej.
PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
4.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix use-after-free
Fix potential use-after-free in l2cap_le_command_rej.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.52-1 (bookworm) | linux 6.1.52-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < e76bab1b7afa580cd76362540fc37551ada4359b | e76bab1b7afa580cd76362540fc37551ada4359b |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < 1a40c56e8bff3e424724d78a9a6b3272dd8a371d | 1a40c56e8bff3e424724d78a9a6b3272dd8a371d |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < fe49aa73cca6608714477b74bfc6874b9db979df | fe49aa73cca6608714477b74bfc6874b9db979df |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < 2958cf9f805b9f0bdc4a761bf6ea281eb8d44f8e | 2958cf9f805b9f0bdc4a761bf6ea281eb8d44f8e |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < 548a6b64b3c0688f01119a6fcccceb41f8c984e4 | 548a6b64b3c0688f01119a6fcccceb41f8c984e4 |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < 149daab45922ab1ac7f0cbeacab7251a46bf5e63 | 149daab45922ab1ac7f0cbeacab7251a46bf5e63 |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < 255be68150291440657b2cdb09420b69441af3d8 | 255be68150291440657b2cdb09420b69441af3d8 |
| linux | linux | >= 71fb419724fadab4efdf98210aa3fe053bd81d29 < f752a0b334bb95fe9b42ecb511e0864e2768046f | f752a0b334bb95fe9b42ecb511e0864e2768046f |
| linux | linux_kernel | < 4.14.324 | 4.14.324 |
| linux | linux_kernel | >= 0 < 5.10.197-1 | 5.10.197-1 |
| linux | linux_kernel | >= 0 < 6.1.52-1 | 6.1.52-1 |
| linux | linux_kernel | >= 0 < 6.4.13-1 | 6.4.13-1 |
| linux | linux_kernel | >= 0 < 6.4.13-1 | 6.4.13-1 |
| linux | linux_kernel | >= 4.15 < 4.19.293 | 4.19.293 |
| linux | linux_kernel | >= 4.20 < 5.4.255 | 5.4.255 |
| linux | linux_kernel | >= 5.11 < 5.15.128 | 5.15.128 |
| linux | linux_kernel | >= 5.16 < 6.1.47 | 6.1.47 |
| linux | linux_kernel | >= 5.5 < 5.10.192 | 5.10.192 |
| linux | linux_kernel | >= 6.2 < 6.4.12 | 6.4.12 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: Bluetooth: L2CAP: Fix use-after-free
vendor_redhat·2025-09-16·CVSS 7.8
CVE-2023-53305 [HIGH] CWE-416 kernel: Bluetooth: L2CAP: Fix use-after-free
kernel: Bluetooth: L2CAP: Fix use-after-free
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix use-after-free
Fix potential use-after-free in l2cap_le_command_rej.
Statement: This L2CAP issue is adjacency-only (Bluetooth LE): an attacker must be within radio range and craft malicious LE frames. Impact is primarily kernel crash / DoS.
It could trigger a use-after-free condition when processing LE command rejection.
In practice an attacker must either establish a BLE connection or rely on the device accepting unauthenticated L2CAP traffic. If the device enforces pairing/authentication for L2CAP operations, exploitation from an unauthenticated remote actor is unlikely.
Fixed in Red Hat Enterprise Linux 9 starting from 9.4.
Mitigation: To mitigate the
Debian
CVE-2023-53305: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...
vendor_debian·2023·CVSS 7.8
CVE-2023-53305 [HIGH] CVE-2023-53305: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2cap_le_command_rej.
Scope: local
bookworm: resolved (fixed in 6.1.52-1)
bullseye: resolved (fixed in 5.10.197-1)
forky: resolved (fixed in 6.4.13-1)
sid: resolved (fixed in 6.4.13-1)
trixie: resolved (fixed in 6.4.13-1)
GHSA
GHSA-xw54-m5g5-fqcg: In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix use-after-free
Fix potential use-after-free in l2cap_le_co
ghsa_unreviewed·2025-09-16
CVE-2023-53305 [HIGH] CWE-416 GHSA-xw54-m5g5-fqcg: In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix use-after-free
Fix potential use-after-free in l2cap_le_co
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix use-after-free
Fix potential use-after-free in l2cap_le_command_rej.
OSV
CVE-2023-53305: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2cap_le_comm
osv·2025-09-16·CVSS 7.8
CVE-2023-53305 [HIGH] CVE-2023-53305: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2cap_le_comm
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2cap_le_command_rej.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/149daab45922ab1ac7f0cbeacab7251a46bf5e63https://git.kernel.org/stable/c/1a40c56e8bff3e424724d78a9a6b3272dd8a371dhttps://git.kernel.org/stable/c/255be68150291440657b2cdb09420b69441af3d8https://git.kernel.org/stable/c/2958cf9f805b9f0bdc4a761bf6ea281eb8d44f8ehttps://git.kernel.org/stable/c/548a6b64b3c0688f01119a6fcccceb41f8c984e4https://git.kernel.org/stable/c/e76bab1b7afa580cd76362540fc37551ada4359bhttps://git.kernel.org/stable/c/f752a0b334bb95fe9b42ecb511e0864e2768046fhttps://git.kernel.org/stable/c/fe49aa73cca6608714477b74bfc6874b9db979df
2025-09-16
Published