Multiple vulnerabilities in Zephyr

Published: 2023-01-23

Risk	Low
Patch available	NO
Number of vulnerabilities	3
CVE-ID	CVE-2023-0397 CVE-2023-0396 CVE-2022-3806
CWE-ID	CWE-703 CWE-119 CWE-415
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Zephyr Operating systems & Components / Operating system
Vendor	Zephyr Project

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Improper Check or Handling of Exceptional Conditions

EUVDB-ID: #VU71417

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-0397

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

Exploit availability: No

Description

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

The vulnerability exists due to unchecked input in le_read_buffer_size_complete. An attacker with physical access can use a defect bluetooth controller and perform a denial of service (DoS) attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Zephyr: 1.0.0 - 3.2.0

CPE2.3

External links

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-wc2h-h868-q7hj

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Buffer overflow

EUVDB-ID: #VU71418

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-0396

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the most functions that process HCI command responses. An attacker with physical access can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Zephyr: 1.0.0 - 3.2.0

CPE2.3

External links

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8rpp-6vxq-pqg3

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

3) Double Free

EUVDB-ID: #VU71419

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-3806

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in bluetooth hci. An attacker with physical access can trigger double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Zephyr: 1.0.0 - 3.2.0

CPE2.3

External links

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w525-fm68-ppq3

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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