Описание
Security update for bluez
This update for bluez fixes the following issues:
- CVE-2019-8921: Fixed heap-based buffer overflow via crafted request (bsc#1193237).
- CVE-2019-8922: Fixed heap-based buffer overflow via crafted request (bsc#1193227).
- CVE-2020-26558: Fixed vulnerability that may permit a nearby man-in-the-middle attacker to identify the Passkey (bsc#1186463).
- CVE-2021-0129: Fixed improper access control (bsc#1186463).
- CVE-2021-3658: Fixed adapter incorrectly restoring discoverable state after powered down (bsc#1188859).
- CVE-2021-43400: Fixed use-after-free in gatt-database.c (bsc#1192394).
Список пакетов
SUSE Enterprise Storage 7
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS
SUSE Linux Enterprise Server 15 SP2-BCL
SUSE Linux Enterprise Server 15 SP2-LTSS
SUSE Linux Enterprise Server for SAP Applications 15 SP2
SUSE Manager Proxy 4.1
SUSE Manager Retail Branch Server 4.1
SUSE Manager Server 4.1
Ссылки
- Link for SUSE-SU-2022:3691-1
- E-Mail link for SUSE-SU-2022:3691-1
- SUSE Security Ratings
- SUSE Bug 1186463
- SUSE Bug 1188859
- SUSE Bug 1192394
- SUSE Bug 1193227
- SUSE Bug 1193237
- SUSE CVE CVE-2019-8921 page
- SUSE CVE CVE-2019-8922 page
- SUSE CVE CVE-2020-26558 page
- SUSE CVE CVE-2021-0129 page
- SUSE CVE CVE-2021-3658 page
- SUSE CVE CVE-2021-43400 page
Описание
An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the same.
Затронутые продукты
Ссылки
- CVE-2019-8921
- SUSE Bug 1193237
Описание
A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. There isn't any check on whether there is enough space in the destination buffer. The function simply appends all data passed to it. The values of all attributes that are requested are appended to the output buffer. There are no size checks whatsoever, resulting in a simple heap overflow if one can craft a request where the response is large enough to overflow the preallocated buffer. This issue exists in service_attr_req gets called by process_request (in sdpd-request.c), which also allocates the response buffer.
Затронутые продукты
Ссылки
- CVE-2019-8922
- SUSE Bug 1193227
Описание
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.
Затронутые продукты
Ссылки
- CVE-2020-26558
- SUSE Bug 1179610
- SUSE Bug 1186463
Описание
Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access.
Затронутые продукты
Ссылки
- CVE-2021-0129
- SUSE Bug 1186463
Описание
bluetoothd from bluez incorrectly saves adapters' Discoverable status when a device is powered down, and restores it when powered up. If a device is powered down while discoverable, it will be discoverable when powered on again. This could lead to inadvertent exposure of the bluetooth stack to physically nearby attackers.
Затронутые продукты
Ссылки
- CVE-2021-3658
- SUSE Bug 1188859
Описание
An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.
Затронутые продукты
Ссылки
- CVE-2021-43400
- SUSE Bug 1192394