---
id: CVE-2023-7356
title: 'Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SERVICE_UUID'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SERVICE_UUID

  Copy the content of a Periodic Advertisement Report to BASE only if
  the service UUID is Basic Au…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-120
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e4cfffb5ebc80820f46cf16a6fa5be1b436bdf2d <
    ba25efe15e8fd909884e113a86c6ccd07d88256e
  - >-
    Linux >= 9c0826310bfb784c9bac7d1d9454e304185446c5 <
    927ef409f713929dea2b9a5ed5bb65e712be0050
  - >-
    Linux >= 9c0826310bfb784c9bac7d1d9454e304185446c5 <
    f4da3ee15de9944482382181329bb6d7335ca003
  - Linux >= 6.1.159 < 6.1.178
  - Linux 6.6
published: '2026-10-21'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T06:55:41.493Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-7356'
references:
  - url: 'https://git.kernel.org/stable/c/ba25efe15e8fd909884e113a86c6ccd07d88256e'
  - url: 'https://git.kernel.org/stable/c/927ef409f713929dea2b9a5ed5bb65e712be0050'
  - url: 'https://git.kernel.org/stable/c/f4da3ee15de9944482382181329bb6d7335ca003'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-7356.json
  - url: 'https://access.redhat.com/security/cve/CVE-2023-7356'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2558312'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2023-7356'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2023-7356'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-7356.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00285
epssPercentile: 0.2094
ingestedAt: '2026-10-21T15:02:42.097Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SERVICE_UUID

Copy the content of a Periodic Advertisement Report to BASE only if
the service UUID is Basic Audio Announcement Service UUID.

## Affected

- `Linux >= e4cfffb5ebc80820f46cf16a6fa5be1b436bdf2d < ba25efe15e8fd909884e113a86c6ccd07d88256e`
- `Linux >= 9c0826310bfb784c9bac7d1d9454e304185446c5 < 927ef409f713929dea2b9a5ed5bb65e712be0050`
- `Linux >= 9c0826310bfb784c9bac7d1d9454e304185446c5 < f4da3ee15de9944482382181329bb6d7335ca003`
- `Linux >= 6.1.159 < 6.1.178`
- `Linux 6.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-7356.json)