medium
6.8
Advisory Published
Updated

CVE-2023-24023

First published: Tue Nov 14 2023(Updated: )

<p>Microsoft is aware of the Bluetooth Forward and Future Secrecy Attacks and Defenses (BLUFFS) vulnerability. For more information regarding the vulnerability, please see <a href="https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/">this statement</a> from the Bluetooth SIG.</p> <p>To address the vulnerability, Microsoft has released a software update that enforces the use of BR/EDR Secure Connections defined encryption and authentication algorithms for Bluetooth pairings that have used BR/EDR Secure Connections. If a paired device used BR/EDR Secure Connection at some point, Windows will enforce all subsequent BR/EDR connections to use BR/EDR Secure Connections.</p> <p>As defined by the BR/EDR Secure Connections protocol, the new BR/EDR Secure Connections algorithms will only be used when the local system and the remote paired device both support BR/EDR Secure Connections. Connections between the local system and the remote paired device will remain vulnerable if either the local system or the remote paired device never declare support for BR/EDR Secure Connections during encryption or authentication..</p> <p>Additionally, it is advised to increase the minimum encryption key size as described in <a href="https://support.microsoft.com/en-us/topic/windows-guidance-for-bluetooth-key-length-enforcement-1b80c5b9-ddc1-31c7-1c3e-78e07c4fe877">Windows guidance for Bluetooth key length enforcement</a>. Increasing the minimum encryption key size does not require support for BR/EDR Secure Connections.</p>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Microsoft Windows 10=21H2
fix available externally
Microsoft Windows Server 2022
fix available externally
fix available externally
Microsoft Windows 10=22H2
fix available externally
Microsoft Windows Server 2022
fix available externally
fix available externally
Microsoft Windows 10=1809
fix available externally
Microsoft Windows 11=22H2
fix available externally
Microsoft Windows 11=23H2
fix available externally
Microsoft Windows Server 2019
fix available externally
Microsoft Windows Server 2022, 23H2 Edition
fix available externally
Microsoft Windows 10=22H2
fix available externally
Microsoft Windows Server 2019
fix available externally
Microsoft Windows 11=22H2
fix available externally
Microsoft Windows 10=1809
fix available externally
Microsoft Windows 11=23H2
fix available externally
Microsoft Windows 11=21H2
fix available externally
Microsoft Windows 10=21H2
fix available externally
Microsoft Windows 10=22H2
fix available externally
Microsoft Windows 10=1809
fix available externally
Microsoft Windows 11=21H2
fix available externally
Microsoft Windows 10=21H2
fix available externally
Bluetooth Bluetooth Core Specification>=4.2<=5.4
Microsoft Windows 10 1809<10.0.17763.5122
Microsoft Windows 10 21h2<10.0.19043.3693
Microsoft Windows 10 22h2<10.0.19045.3693
Microsoft Windows 11 21h2<10.0.22000.2600
Microsoft Windows 11 22h2<10.0.22621.2715
Microsoft Windows 11 23h2<10.0.22631.2715
Microsoft Windows Server 2019<10.0.17763.5122
Microsoft Windows Server 2022<10.0.20348.2113
Microsoft Windows Server 2022 23h2<10.0.25398.531
ubuntu/linux<4.15.0-224.236
4.15.0-224.236
ubuntu/linux<5.4.0-177.197
5.4.0-177.197
ubuntu/linux<5.15.0-105.115
5.15.0-105.115
ubuntu/linux<6.7~
6.7~
ubuntu/linux<4.4.0-253.287
4.4.0-253.287
ubuntu/linux-aws<4.15.0-1167.180
4.15.0-1167.180
ubuntu/linux-aws<5.4.0-1123.133
5.4.0-1123.133
ubuntu/linux-aws<5.15.0-1060.66
5.15.0-1060.66
ubuntu/linux-aws<4.4.0-1130.136
4.4.0-1130.136
ubuntu/linux-aws<6.7~
6.7~
ubuntu/linux-aws<4.4.0-1168.183
4.4.0-1168.183
ubuntu/linux-aws-5.15<5.15.0-1058.64~20.04.1
5.15.0-1058.64~20.04.1
ubuntu/linux-aws-5.15<6.7~
6.7~
ubuntu/linux-aws-5.4<5.4.0-1123.133~18.04.1
5.4.0-1123.133~18.04.1
ubuntu/linux-aws-5.4<6.7~
6.7~
ubuntu/linux-aws-6.5<6.7~
6.7~
ubuntu/linux-aws-fips<6.7~
6.7~
ubuntu/linux-aws-hwe<6.7~
6.7~
ubuntu/linux-aws-hwe<4.15.0-1167.180~16.04.1
4.15.0-1167.180~16.04.1
ubuntu/linux-azure<5.4.0-1128.135
5.4.0-1128.135
ubuntu/linux-azure<5.15.0-1061.70
5.15.0-1061.70
ubuntu/linux-azure<4.15.0-1176.191~14.04.1
4.15.0-1176.191~14.04.1
ubuntu/linux-azure<6.7~
6.7~
ubuntu/linux-azure<4.15.0-1176.191~16.04.1
4.15.0-1176.191~16.04.1
ubuntu/linux-azure-4.15<4.15.0-1176.191
4.15.0-1176.191
ubuntu/linux-azure-4.15<6.7~
6.7~
ubuntu/linux-azure-5.15<5.15.0-1061.70~20.04.1
5.15.0-1061.70~20.04.1
ubuntu/linux-azure-5.15<6.7~
6.7~
ubuntu/linux-azure-5.4<5.4.0-1128.135~18.04.1
5.4.0-1128.135~18.04.1
ubuntu/linux-azure-5.4<6.7~
6.7~
ubuntu/linux-azure-6.5<6.7~
6.7~
ubuntu/linux-azure-fde<5.15.0-1061.70.1
5.15.0-1061.70.1
ubuntu/linux-azure-fde<6.7~
6.7~
ubuntu/linux-azure-fde-5.15<5.15.0-1061.70~20.04.1.1
5.15.0-1061.70~20.04.1.1
ubuntu/linux-azure-fde-5.15<6.7~
6.7~
ubuntu/linux-azure-fips<6.7~
6.7~
ubuntu/linux-bluefield<5.4.0-1083.90
5.4.0-1083.90
ubuntu/linux-bluefield<5.15.0-1042.44
5.15.0-1042.44
ubuntu/linux-bluefield<6.7~
6.7~
ubuntu/linux-fips<6.7~
6.7~
ubuntu/linux-gcp<5.4.0-1127.136
5.4.0-1127.136
ubuntu/linux-gcp<5.15.0-1058.66
5.15.0-1058.66
ubuntu/linux-gcp<6.7~
6.7~
ubuntu/linux-gcp<4.15.0-1161.178~16.04.1
4.15.0-1161.178~16.04.1
ubuntu/linux-gcp-4.15<4.15.0-1161.178
4.15.0-1161.178
ubuntu/linux-gcp-4.15<6.7~
6.7~
ubuntu/linux-gcp-5.15<5.15.0-1058.66~20.04.1
5.15.0-1058.66~20.04.1
ubuntu/linux-gcp-5.15<6.7~
6.7~
ubuntu/linux-gcp-5.4<5.4.0-1127.136~18.04.1
5.4.0-1127.136~18.04.1
ubuntu/linux-gcp-5.4<6.7~
6.7~
ubuntu/linux-gcp-6.5<6.7~
6.7~
ubuntu/linux-gcp-fips<6.7~
6.7~
ubuntu/linux-gke<5.15.0-1057.62
5.15.0-1057.62
ubuntu/linux-gke<6.7~
6.7~
ubuntu/linux-gkeop<5.4.0-1090.94
5.4.0-1090.94
ubuntu/linux-gkeop<5.15.0-1043.50
5.15.0-1043.50
ubuntu/linux-gkeop<6.7~
6.7~
ubuntu/linux-gkeop-5.15<5.15.0-1043.50~20.04.1
5.15.0-1043.50~20.04.1
ubuntu/linux-gkeop-5.15<6.7~
6.7~
ubuntu/linux-hwe<6.7~
6.7~
ubuntu/linux-hwe<4.15.0-224.236~16.04.1
4.15.0-224.236~16.04.1
ubuntu/linux-hwe-5.15<5.15.0-105.115~20.04.1
5.15.0-105.115~20.04.1
ubuntu/linux-hwe-5.15<6.7~
6.7~
ubuntu/linux-hwe-5.4<5.4.0-177.197~18.04.1
5.4.0-177.197~18.04.1
ubuntu/linux-hwe-5.4<6.7~
6.7~
ubuntu/linux-hwe-6.5<6.7~
6.7~
ubuntu/linux-ibm<5.4.0-1070.75
5.4.0-1070.75
ubuntu/linux-ibm<5.15.0-1053.56
5.15.0-1053.56
ubuntu/linux-ibm<6.7~
6.7~
ubuntu/linux-ibm-5.15<5.15.0-1053.56~20.04.1
5.15.0-1053.56~20.04.1
ubuntu/linux-ibm-5.15<6.7~
6.7~
ubuntu/linux-ibm-5.4<5.4.0-1070.75~18.04.1
5.4.0-1070.75~18.04.1
ubuntu/linux-ibm-5.4<6.7~
6.7~
ubuntu/linux-intel<6.7~
6.7~
ubuntu/linux-intel-iotg<5.15.0-1055.61
5.15.0-1055.61
ubuntu/linux-intel-iotg<6.7~
6.7~
ubuntu/linux-intel-iotg-5.15<5.15.0-1055.61~20.04.1
5.15.0-1055.61~20.04.1
ubuntu/linux-intel-iotg-5.15<6.7~
6.7~
ubuntu/linux-iot<5.4.0-1035.36
5.4.0-1035.36
ubuntu/linux-iot<6.7~
6.7~
ubuntu/linux-kvm<4.15.0-1151.156
4.15.0-1151.156
ubuntu/linux-kvm<5.4.0-1111.118
5.4.0-1111.118
ubuntu/linux-kvm<5.15.0-1057.62
5.15.0-1057.62
ubuntu/linux-kvm<6.7~
6.7~
ubuntu/linux-kvm<4.4.0-1131.141
4.4.0-1131.141
ubuntu/linux-laptop<6.7~
6.7~
ubuntu/linux-lowlatency<5.15.0-105.115
5.15.0-105.115
ubuntu/linux-lowlatency<6.7~
6.7~
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-105.115~20.04.1
5.15.0-105.115~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<6.7~
6.7~
ubuntu/linux-lowlatency-hwe-6.5<6.7~
6.7~
ubuntu/linux-lts-xenial<4.4.0-253.287~14.04.1
4.4.0-253.287~14.04.1
ubuntu/linux-lts-xenial<6.7~
6.7~
ubuntu/linux-nvidia<5.15.0-1053.54
5.15.0-1053.54
ubuntu/linux-nvidia<6.7~
6.7~
ubuntu/linux-nvidia-6.5<6.7~
6.7~
ubuntu/linux-oem-6.5<6.7~
6.7~
ubuntu/linux-oem-6.8<6.7~
6.7~
ubuntu/linux-oracle<4.15.0-1130.141
4.15.0-1130.141
ubuntu/linux-oracle<5.4.0-1122.131
5.4.0-1122.131
ubuntu/linux-oracle<5.15.0-1058.64
5.15.0-1058.64
ubuntu/linux-oracle<6.7~
6.7~
ubuntu/linux-oracle<4.15.0-1130.141~16.04.1
4.15.0-1130.141~16.04.1
ubuntu/linux-oracle-5.15<5.15.0-1058.64~20.04.1
5.15.0-1058.64~20.04.1
ubuntu/linux-oracle-5.15<6.7~
6.7~
ubuntu/linux-oracle-5.4<5.4.0-1122.131~18.04.1
5.4.0-1122.131~18.04.1
ubuntu/linux-oracle-5.4<6.7~
6.7~
ubuntu/linux-oracle-6.5<6.7~
6.7~
ubuntu/linux-raspi<5.4.0-1107.119
5.4.0-1107.119
ubuntu/linux-raspi<5.15.0-1053.56
5.15.0-1053.56
ubuntu/linux-raspi<6.7.0-1001.1
6.7.0-1001.1
ubuntu/linux-raspi<6.7~
6.7~
ubuntu/linux-raspi-5.4<5.4.0-1107.119~18.04.1
5.4.0-1107.119~18.04.1
ubuntu/linux-raspi-5.4<6.7~
6.7~
ubuntu/linux-riscv<6.7~
6.7~
ubuntu/linux-riscv-5.15<5.15.0-1056.60~20.04.1
5.15.0-1056.60~20.04.1
ubuntu/linux-riscv-5.15<6.7~
6.7~
ubuntu/linux-riscv-6.5<6.7~
6.7~
ubuntu/linux-starfive<6.7~
6.7~
ubuntu/linux-starfive-6.5<6.7~
6.7~
ubuntu/linux-xilinx-zynqmp<5.4.0-1042.46
5.4.0-1042.46
ubuntu/linux-xilinx-zynqmp<6.7~
6.7~
debian/linux<=5.10.218-1<=5.10.221-1
6.1.94-1
6.1.99-1
6.9.9-1
6.9.10-1

Remedy

https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Remedy

https://git.kernel.org/linus/04a342cc49a8522e99c9b3346371c329d841dcd2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-24023?

    CVE-2023-24023 is a Bluetooth vulnerability that affects various versions of Microsoft Windows and Windows Server.

  • What is the severity of CVE-2023-24023?

    CVE-2023-24023 has a severity rating of high, with a severity value of 7.

  • Which software is affected by CVE-2023-24023?

    CVE-2023-24023 affects Windows Server 2019, Windows 11 (21H2, 23H2, and 22H2 versions), Windows 10 (21H2 and 22H2 versions), and Windows Server 2022.

  • How can I fix CVE-2023-24023?

    To fix CVE-2023-24023, you should apply the patches provided by Microsoft for the affected operating systems. Please refer to the Microsoft support links provided for each affected software version.

  • Where can I find more information about CVE-2023-24023?

    You can find more information about CVE-2023-24023 on the official Microsoft Security Response Center (MSRC) website at the provided reference link.

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