Denial of service in BlueZ

Published: 2016-12-03 | Updated: 2019-12-02

Risk	Low
Patch available	YES
Number of vulnerabilities	9
CVE-ID	CVE-2016-9798 CVE-2016-9918 CVE-2016-9917 CVE-2016-9804 CVE-2016-9803 CVE-2016-9801 CVE-2016-9800 CVE-2016-9799
CWE-ID	CWE-416 CWE-125 CWE-119
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	BlueZ Universal components / Libraries / Libraries used by multiple products
Vendor	BlueZ Project

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU23107

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9798

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the conf_opt() function in tools/parser/l2cap.c when processing a corrupted dump file. A local user can use a specially crafted dump file to crash hcidump.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68892.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU23109

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9918

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within packet_hexdump() function in monitor/packet.c. A local user can pass a specially crafted dump file, trigger out-of-bounds read error and crash the affected application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00054.html
http://www.spinics.net/lists/linux-bluetooth/msg68898.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Buffer overflow

EUVDB-ID: #VU23110

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9917

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the read_n() function in tools/hcidump.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash hcidump.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68892.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Buffer overflow

EUVDB-ID: #VU23111

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9804

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the commands_dump() function in tools/parser/csr.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash hcidump.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68892.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Out-of-bounds read

EUVDB-ID: #VU23112

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9918

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the "packet_hexdump()" function in monitor/packet.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash hcidump.

Mitigation

Install update from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68898.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Out-of-bounds read

EUVDB-ID: #VU23114

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9803

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a boundary condition within the le_meta_ev_dump() function in tools/parser/hci.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68892.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Buffer overflow

EUVDB-ID: #VU23115

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9801

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the set_ext_ctrl() function in tools/parser/l2cap.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.securityfocus.com/bid/94652
http://www.spinics.net/lists/linux-bluetooth/msg68892.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Buffer overflow

EUVDB-ID: #VU23116

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9800

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the pin_code_reply_dump() function in tools/parser/hci.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68892.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Buffer overflow

EUVDB-ID: #VU23117

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9799

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the pklg_read_hci() function in btsnoop.c. A local user can pass a specially crafted dump file, trigger a buffer overflow and crash application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.42

External links

http://www.spinics.net/lists/linux-bluetooth/msg68898.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.