CVE-2023-53386 — Use After Free in Linux

CWE-416 — Use After Free5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6fa26b5 ("Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk"). We can not access k after kfree_rcu() call.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶NVDlinux/linux_kernel5.7 — 5.10.195+4
▶Debianlinux/linux_kernel< 5.10.197-1+3
▶CVEListV5linux/linuxd7d41682efc25d58b5bd8b80e85e3c9ce586635c — e87da6a0ac6e631454e7da53a76aa9fe44aaa5dd+6
▶debiandebian/linux< linux 6.1.55-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53386: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6fa↗2025-09-18
▶
GHSA
GHSA-m38w-46xg-v336: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: Bluetooth: Fix potential use-after-free when clear keys↗2025-09-18
▶
Debian
CVE-2023-53386: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...↗2023
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CVE-2023-53386 — Use After Free in Linux | cvebase