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.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - bluez: heap-based buffer overflow via crafted request (CVE-2019-8922)

  - Buffer overflow in BlueZ 5.41 and earlier allows an attacker to execute arbitrary code via the parse_line     function used in some userland utilities. (CVE-2016-7837)

  - In BlueZ 5.42, a buffer over-read was observed in l2cap_dump function in tools/parser/l2cap.c source     file. This issue can be triggered by processing a corrupted dump file and will result in hcidump crash.
    (CVE-2016-9797)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The version of bluez installed on the remote host is prior to 5.44-7. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2309 advisory.

    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. (CVE-2019-8921)

    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. (CVE-2019-8922)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the bluez package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - 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. (CVE-2019-8921)

  - A heap overflow vulnerability was found in bluez in versions prior to 5.63. An attacker with local network     access could pass specially crafted files causing an application to halt or crash, leading to a denial of     service. (CVE-2022-0204)

  - BlueZ before 5.59 allows physically proximate attackers to obtain sensitive information because     profiles/audio/avrcp.c does not validate params_len. (CVE-2022-39176)

  - BlueZ before 5.59 allows physically proximate attackers to cause a denial of service because malformed and     invalid capabilities can be processed in profiles/audio/avdtp.c. (CVE-2022-39177)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the bluez package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - 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. (CVE-2021-43400)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3718-1 advisory.

  - In BlueZ 5.42, an out-of-bounds read was observed in le_meta_ev_dump function in tools/parser/hci.c     source file. This issue exists because 'subevent' (which is used to read correct element from     'ev_le_meta_str' array) is overflowed. (CVE-2016-9803)

  - 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. (CVE-2019-8921)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3157 advisory.

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in     sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates     and will not be freed. This will cause a memory leak over time. The data can be a very large object, which     can be caused by an attacker continuously sending sdp packets and this may cause the service of the target     device to crash. (CVE-2021-41229)

  - 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. (CVE-2021-43400)

  - A heap overflow vulnerability was found in bluez in versions prior to 5.63. An attacker with local network     access could pass specially crafted files causing an application to halt or crash, leading to a denial of     service. (CVE-2022-0204)

  - BlueZ before 5.59 allows physically proximate attackers to obtain sensitive information because     profiles/audio/avrcp.c does not validate params_len. (CVE-2022-39176)

  - BlueZ before 5.59 allows physically proximate attackers to cause a denial of service because malformed and     invalid capabilities can be processed in profiles/audio/avdtp.c. (CVE-2022-39177)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3687-1 advisory.

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - 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. (CVE-2020-26558)

  - Improper access control in BlueZ may allow an authenticated user to potentially enable information     disclosure via adjacent access. (CVE-2021-0129)

  - 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. (CVE-2021-3658)

  - 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. (CVE-2021-43400)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3691-1 advisory.

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - 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. (CVE-2020-26558)

  - Improper access control in BlueZ may allow an authenticated user to potentially enable information     disclosure via adjacent access. (CVE-2021-0129)

  - 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. (CVE-2021-3658)

  - 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. (CVE-2021-43400)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the bluez packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - 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. (CVE-2021-43400)

  - A heap overflow vulnerability was found in bluez in versions prior to 5.63. An attacker with local network     access could pass specially crafted files causing an application to halt or crash, leading to a denial of     service. (CVE-2022-0204)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the bluez packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - 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. (CVE-2021-43400)

  - A heap overflow vulnerability was found in bluez in versions prior to 5.63. An attacker with local network     access could pass specially crafted files causing an application to halt or crash, leading to a denial of     service. (CVE-2022-0204)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the bluez packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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. (CVE-2019-8921)

  - 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. (CVE-2021-43400)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2827 advisory.

  - 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. (CVE-2019-8921)

  - 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. (CVE-2019-8922)

  - BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in     sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates     and will not be freed. This will cause a memory leak over time. The data can be a very large object, which     can be caused by an attacker continuously sending sdp packets and this may cause the service of the target     device to crash. (CVE-2021-41229)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
198714	RHEL 7 : bluez (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
196471	RHEL 6 : bluez (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
183481	Amazon Linux 2 : bluez (ALAS-2023-2309)	Nessus	Amazon Linux Local Security Checks	high
175202	EulerOS Virtualization 3.0.2.0 : bluez (EulerOS-SA-2023-1742)	Nessus	Huawei Local Security Checks	high
169620	EulerOS Virtualization 3.0.2.6 : bluez (EulerOS-SA-2023-1090)	Nessus	Huawei Local Security Checks	critical
166534	SUSE SLED12 / SLES12 Security Update : bluez (SUSE-SU-2022:3718-1)	Nessus	SuSE Local Security Checks	medium
166429	Debian DLA-3157-1 : bluez - LTS security update	Nessus	Debian Local Security Checks	critical
166424	SUSE SLES15 Security Update : bluez (SUSE-SU-2022:3687-1)	Nessus	SuSE Local Security Checks	critical
166417	SUSE SLES15 Security Update : bluez (SUSE-SU-2022:3691-1)	Nessus	SuSE Local Security Checks	critical
165877	EulerOS Virtualization 3.0.6.6 : bluez (EulerOS-SA-2022-2488)	Nessus	Huawei Local Security Checks	critical
161589	EulerOS 2.0 SP3 : bluez (EulerOS-SA-2022-1707)	Nessus	Huawei Local Security Checks	critical
160126	EulerOS 2.0 SP5 : bluez (EulerOS-SA-2022-1524)	Nessus	Huawei Local Security Checks	critical
155712	Debian DLA-2827-1 : bluez - LTS security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2019-8921

medium

Tenable Plugins

high

high

high

high

critical

medium

critical

critical

critical

critical

critical

critical

high