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CVE-2022-3564

Linux Kernel Bluetooth l2cap_core.c l2cap_reassemble_sdu use after free

HIGH
7.1
CVSS Score
Published: October 17, 2022 at 12:00 AM UTC
Updated: October 14, 2026 at 02:17 PM UTC
6 products affected across 3 vendorsLinux KernelDebian LinuxH700S Firmware· also runs on 4 platforms

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Severity
HIGH7.1
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.0
Linux Kernel· Linux
95%
3.6 ≤ v < 4.9.3334.10 ≤ v < 4.14.2994.15 ≤ v < 4.19.2654.20 ≤ v < 5.4.2245.11 ≤ v < 5.15.785.16 ≤ v < 6.0.85.5.0 ≤ v < 5.10.154
Affected range stops below 4.14.299, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.265, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.333, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.10.154, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.78, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.224, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.8, so it looks safe — our inference, not a vendor statement
H300S Firmware· NetAppdrupal
95%
All versions
netapp-h300s (same device)
H410S Firmware· NetAppdrupal
95%
All versions
netapp-h410s (same device)
H500S Firmware· NetAppdrupal
95%
All versions
netapp-h500s (same device)
H700S Firmware· NetAppdrupal
95%
All versions
netapp-h700s (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

Patch
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=89f9f3cb86b1c63badaf392a83dd661d56cc50b1
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20221223-0001/
Third Party Advisory
Source: [email protected]
https://vuldb.com/?id.211087
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-794697.html

CVSS

7.1HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-362

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