An update for bluez is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3881 Final 1.0 1.0 2026-09-20 Initial 2026-09-20 2026-09-20 openEuler SA Tool V1.0 2026-09-20 bluez security update An update for bluez is now available for openEuler-24.03-LTS-SP3 This package provides all utilities for use in Bluetooth applications. The BLUETOOTH trademarks are owned by Bluetooth SIG, Inc., U.S.A. Security Fix(es): BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29429.(CVE-2026-19774) BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a sequence pointer, allowing a local caller to crash bluetoothd.(CVE-2026-80185) A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code execution.(CVE-2026-80186) An update for bluez is now available for openEuler-24.03-LTS-SP3. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High bluez https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3881 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-19774 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-80185 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-80186 https://nvd.nist.gov/vuln/detail/CVE-2026-19774 https://nvd.nist.gov/vuln/detail/CVE-2026-80185 https://nvd.nist.gov/vuln/detail/CVE-2026-80186 openEuler-24.03-LTS-SP3 bluez-5.71-7.oe2403sp3.aarch64.rpm bluez-cups-5.71-7.oe2403sp3.aarch64.rpm bluez-debuginfo-5.71-7.oe2403sp3.aarch64.rpm bluez-debugsource-5.71-7.oe2403sp3.aarch64.rpm bluez-devel-5.71-7.oe2403sp3.aarch64.rpm bluez-libs-5.71-7.oe2403sp3.aarch64.rpm bluez-5.71-7.oe2403sp3.src.rpm bluez-5.71-7.oe2403sp3.x86_64.rpm bluez-cups-5.71-7.oe2403sp3.x86_64.rpm bluez-debuginfo-5.71-7.oe2403sp3.x86_64.rpm bluez-debugsource-5.71-7.oe2403sp3.x86_64.rpm bluez-devel-5.71-7.oe2403sp3.x86_64.rpm bluez-libs-5.71-7.oe2403sp3.x86_64.rpm bluez-help-5.71-7.oe2403sp3.noarch.rpm BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29429. 2026-09-20 CVE-2026-19774 openEuler-24.03-LTS-SP3 High 7.1 AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H bluez security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3881 BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a sequence pointer, allowing a local caller to crash bluetoothd. 2026-09-20 CVE-2026-80185 openEuler-24.03-LTS-SP3 Medium 5.7 AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H bluez security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3881 A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code execution. 2026-09-20 CVE-2026-80186 openEuler-24.03-LTS-SP3 High 7.6 AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H bluez security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3881