#VU67750 Information exposure through externally-generated error message in BlueZ - CVE-2022-39176

Vulnerability identifier: #VU67750

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-39176

CWE-ID: CWE-211

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
BlueZ
Universal components / Libraries / Libraries used by multiple products

Vendor: BlueZ Project

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application while handling error conditions within profiles/audio/avrcp.c. A remote attacker on the local network can obtain sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BlueZ: 5.0 - 5.58

---

External links
https://ubuntu.com/security/notices/USN-5481-1
https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1977968

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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