Home/CVE/A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_r
CVE

CVE-2022-3564

A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_r

A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_reassemble_sdu of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free.

It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211087.

MEDIUM · CVSS 5.5 EPSS 0.00089
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

12
linux kernel>= 3.6 and < 4.9.333
linux kernel>= 4.10 and < 4.14.299
linux kernel>= 4.15 and < 4.19.265
linux kernel>= 4.20 and < 5.4.224
linux kernel>= 5.5.0 and < 5.10.154
linux kernel>= 5.11 and < 5.15.78
linux kernel>= 5.16 and < 6.0.8
debian linuxall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Oct 2022 · 07:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
⚑

Vendor Advisories

30
rhsaRHSA-2023:2951Moderate
suse-csafSUSE-SU-2025:02262-1
suse-csafSUSE-SU-2025:02173-1
rhsaRHSA-2023:0951Moderate
suse-csafSUSE-SU-2025:01995-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=89f9f3cb86b1c63badaf392a83dd661d56cc50b1Patch
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20221223-0001/Third Party Advisory
https://vuldb.com/?id.211087Third Party Advisory
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